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1d3de414eb
Using this new iptables DCCP protocol header match, it is possible to create simplistic stateless packet filtering rules for DCCP. It permits matching of port numbers, packet type and options. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
728 lines
24 KiB
Text
728 lines
24 KiB
Text
#
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# IP netfilter configuration
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#
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menu "IP: Netfilter Configuration"
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depends on INET && NETFILTER
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# connection tracking, helpers and protocols
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config IP_NF_CONNTRACK
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tristate "Connection tracking (required for masq/NAT)"
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---help---
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Connection tracking keeps a record of what packets have passed
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through your machine, in order to figure out how they are related
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into connections.
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This is required to do Masquerading or other kinds of Network
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Address Translation (except for Fast NAT). It can also be used to
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enhance packet filtering (see `Connection state match support'
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below).
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_CT_ACCT
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bool "Connection tracking flow accounting"
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depends on IP_NF_CONNTRACK
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help
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If this option is enabled, the connection tracking code will
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keep per-flow packet and byte counters.
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Those counters can be used for flow-based accounting or the
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`connbytes' match.
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If unsure, say `N'.
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config IP_NF_CONNTRACK_MARK
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bool 'Connection mark tracking support'
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help
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This option enables support for connection marks, used by the
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`CONNMARK' target and `connmark' match. Similar to the mark value
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of packets, but this mark value is kept in the conntrack session
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instead of the individual packets.
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config IP_NF_CONNTRACK_EVENTS
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bool "Connection tracking events"
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depends on IP_NF_CONNTRACK
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help
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If this option is enabled, the connection tracking code will
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provide a notifier chain that can be used by other kernel code
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to get notified about changes in the connection tracking state.
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IF unsure, say `N'.
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config IP_NF_CT_PROTO_SCTP
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tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)'
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depends on IP_NF_CONNTRACK && EXPERIMENTAL
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help
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With this option enabled, the connection tracking code will
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be able to do state tracking on SCTP connections.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_FTP
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tristate "FTP protocol support"
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depends on IP_NF_CONNTRACK
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help
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Tracking FTP connections is problematic: special helpers are
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required for tracking them, and doing masquerading and other forms
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of Network Address Translation on them.
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To compile it as a module, choose M here. If unsure, say Y.
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config IP_NF_IRC
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tristate "IRC protocol support"
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depends on IP_NF_CONNTRACK
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---help---
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There is a commonly-used extension to IRC called
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Direct Client-to-Client Protocol (DCC). This enables users to send
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files to each other, and also chat to each other without the need
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of a server. DCC Sending is used anywhere you send files over IRC,
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and DCC Chat is most commonly used by Eggdrop bots. If you are
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using NAT, this extension will enable you to send files and initiate
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chats. Note that you do NOT need this extension to get files or
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have others initiate chats, or everything else in IRC.
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To compile it as a module, choose M here. If unsure, say Y.
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config IP_NF_TFTP
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tristate "TFTP protocol support"
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depends on IP_NF_CONNTRACK
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help
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TFTP connection tracking helper, this is required depending
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on how restrictive your ruleset is.
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If you are using a tftp client behind -j SNAT or -j MASQUERADING
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you will need this.
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To compile it as a module, choose M here. If unsure, say Y.
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config IP_NF_AMANDA
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tristate "Amanda backup protocol support"
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depends on IP_NF_CONNTRACK
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help
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If you are running the Amanda backup package <http://www.amanda.org/>
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on this machine or machines that will be MASQUERADED through this
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machine, then you may want to enable this feature. This allows the
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connection tracking and natting code to allow the sub-channels that
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Amanda requires for communication of the backup data, messages and
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index.
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To compile it as a module, choose M here. If unsure, say Y.
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config IP_NF_QUEUE
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tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
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help
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Netfilter has the ability to queue packets to user space: the
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netlink device can be used to access them using this driver.
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This option enables the old IPv4-only "ip_queue" implementation
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which has been obsoleted by the new "nfnetlink_queue" code (see
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CONFIG_NETFILTER_NETLINK_QUEUE).
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_IPTABLES
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tristate "IP tables support (required for filtering/masq/NAT)"
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help
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iptables is a general, extensible packet identification framework.
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The packet filtering and full NAT (masquerading, port forwarding,
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etc) subsystems now use this: say `Y' or `M' here if you want to use
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either of those.
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To compile it as a module, choose M here. If unsure, say N.
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# The matches.
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config IP_NF_MATCH_LIMIT
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tristate "limit match support"
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depends on IP_NF_IPTABLES
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help
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limit matching allows you to control the rate at which a rule can be
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matched: mainly useful in combination with the LOG target ("LOG
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target support", below) and to avoid some Denial of Service attacks.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_IPRANGE
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tristate "IP range match support"
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depends on IP_NF_IPTABLES
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help
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This option makes possible to match IP addresses against IP address
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ranges.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_MAC
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tristate "MAC address match support"
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depends on IP_NF_IPTABLES
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help
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MAC matching allows you to match packets based on the source
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Ethernet address of the packet.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_PKTTYPE
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tristate "Packet type match support"
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depends on IP_NF_IPTABLES
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help
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Packet type matching allows you to match a packet by
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its "class", eg. BROADCAST, MULTICAST, ...
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Typical usage:
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iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_MARK
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tristate "netfilter MARK match support"
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depends on IP_NF_IPTABLES
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help
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Netfilter mark matching allows you to match packets based on the
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`nfmark' value in the packet. This can be set by the MARK target
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(see below).
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_MULTIPORT
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tristate "Multiple port match support"
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depends on IP_NF_IPTABLES
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help
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Multiport matching allows you to match TCP or UDP packets based on
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a series of source or destination ports: normally a rule can only
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match a single range of ports.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_TOS
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tristate "TOS match support"
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depends on IP_NF_IPTABLES
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help
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TOS matching allows you to match packets based on the Type Of
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Service fields of the IP packet.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_RECENT
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tristate "recent match support"
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depends on IP_NF_IPTABLES
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help
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This match is used for creating one or many lists of recently
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used addresses and then matching against that/those list(s).
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Short options are available by using 'iptables -m recent -h'
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Official Website: <http://snowman.net/projects/ipt_recent/>
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_ECN
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tristate "ECN match support"
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depends on IP_NF_IPTABLES
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help
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This option adds a `ECN' match, which allows you to match against
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the IPv4 and TCP header ECN fields.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_DSCP
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tristate "DSCP match support"
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depends on IP_NF_IPTABLES
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help
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This option adds a `DSCP' match, which allows you to match against
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the IPv4 header DSCP field (DSCP codepoint).
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The DSCP codepoint can have any value between 0x0 and 0x4f.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_AH_ESP
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tristate "AH/ESP match support"
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depends on IP_NF_IPTABLES
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help
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These two match extensions (`ah' and `esp') allow you to match a
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range of SPIs inside AH or ESP headers of IPSec packets.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_LENGTH
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tristate "LENGTH match support"
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depends on IP_NF_IPTABLES
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help
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This option allows you to match the length of a packet against a
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specific value or range of values.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_TTL
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tristate "TTL match support"
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depends on IP_NF_IPTABLES
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help
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This adds CONFIG_IP_NF_MATCH_TTL option, which enabled the user
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to match packets by their TTL value.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_TCPMSS
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tristate "tcpmss match support"
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depends on IP_NF_IPTABLES
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help
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This option adds a `tcpmss' match, which allows you to examine the
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MSS value of TCP SYN packets, which control the maximum packet size
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for that connection.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_HELPER
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tristate "Helper match support"
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depends on IP_NF_CONNTRACK && IP_NF_IPTABLES
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help
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Helper matching allows you to match packets in dynamic connections
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tracked by a conntrack-helper, ie. ip_conntrack_ftp
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To compile it as a module, choose M here. If unsure, say Y.
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config IP_NF_MATCH_STATE
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tristate "Connection state match support"
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depends on IP_NF_CONNTRACK && IP_NF_IPTABLES
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help
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Connection state matching allows you to match packets based on their
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relationship to a tracked connection (ie. previous packets). This
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is a powerful tool for packet classification.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_CONNTRACK
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tristate "Connection tracking match support"
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depends on IP_NF_CONNTRACK && IP_NF_IPTABLES
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help
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This is a general conntrack match module, a superset of the state match.
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It allows matching on additional conntrack information, which is
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useful in complex configurations, such as NAT gateways with multiple
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internet links or tunnels.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_OWNER
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tristate "Owner match support"
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depends on IP_NF_IPTABLES
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help
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Packet owner matching allows you to match locally-generated packets
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based on who created them: the user, group, process or session.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_PHYSDEV
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tristate "Physdev match support"
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depends on IP_NF_IPTABLES && BRIDGE_NETFILTER
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help
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Physdev packet matching matches against the physical bridge ports
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the IP packet arrived on or will leave by.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_MATCH_ADDRTYPE
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tristate 'address type match support'
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depends on IP_NF_IPTABLES
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help
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This option allows you to match what routing thinks of an address,
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eg. UNICAST, LOCAL, BROADCAST, ...
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_MATCH_REALM
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tristate 'realm match support'
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depends on IP_NF_IPTABLES
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select NET_CLS_ROUTE
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help
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This option adds a `realm' match, which allows you to use the realm
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key from the routing subsystem inside iptables.
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This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option
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in tc world.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_MATCH_SCTP
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tristate 'SCTP protocol match support'
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depends on IP_NF_IPTABLES
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help
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With this option enabled, you will be able to use the iptables
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`sctp' match in order to match on SCTP source/destination ports
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and SCTP chunk types.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_MATCH_DCCP
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tristate 'DCCP protocol match support'
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depends on IP_NF_IPTABLES
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help
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With this option enabled, you will be able to use the iptables
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`dccp' match in order to match on DCCP source/destination ports
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and DCCP flags.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_MATCH_COMMENT
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tristate 'comment match support'
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depends on IP_NF_IPTABLES
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help
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This option adds a `comment' dummy-match, which allows you to put
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comments in your iptables ruleset.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config IP_NF_MATCH_CONNMARK
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tristate 'Connection mark match support'
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depends on IP_NF_CONNTRACK_MARK && IP_NF_IPTABLES
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help
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This option adds a `connmark' match, which allows you to match the
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connection mark value previously set for the session by `CONNMARK'.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. The module will be called
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ipt_connmark.o. If unsure, say `N'.
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config IP_NF_MATCH_HASHLIMIT
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tristate 'hashlimit match support'
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depends on IP_NF_IPTABLES
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help
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This option adds a new iptables `hashlimit' match.
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As opposed to `limit', this match dynamically crates a hash table
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of limit buckets, based on your selection of source/destination
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ip addresses and/or ports.
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It enables you to express policies like `10kpps for any given
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destination IP' or `500pps from any given source IP' with a single
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IPtables rule.
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# `filter', generic and specific targets
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config IP_NF_FILTER
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tristate "Packet filtering"
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depends on IP_NF_IPTABLES
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help
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Packet filtering defines a table `filter', which has a series of
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rules for simple packet filtering at local input, forwarding and
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local output. See the man page for iptables(8).
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_TARGET_REJECT
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tristate "REJECT target support"
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depends on IP_NF_FILTER
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help
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The REJECT target allows a filtering rule to specify that an ICMP
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error should be issued in response to an incoming packet, rather
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than silently being dropped.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_TARGET_LOG
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tristate "LOG target support"
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depends on IP_NF_IPTABLES
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help
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This option adds a `LOG' target, which allows you to create rules in
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any iptables table which records the packet header to the syslog.
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_TARGET_ULOG
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tristate "ULOG target support"
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depends on IP_NF_IPTABLES
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---help---
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This option adds a `ULOG' target, which allows you to create rules in
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any iptables table. The packet is passed to a userspace logging
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daemon using netlink multicast sockets; unlike the LOG target
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which can only be viewed through syslog.
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The apropriate userspace logging daemon (ulogd) may be obtained from
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<http://www.gnumonks.org/projects/ulogd/>
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_TARGET_TCPMSS
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tristate "TCPMSS target support"
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depends on IP_NF_IPTABLES
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---help---
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This option adds a `TCPMSS' target, which allows you to alter the
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MSS value of TCP SYN packets, to control the maximum size for that
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connection (usually limiting it to your outgoing interface's MTU
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minus 40).
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This is used to overcome criminally braindead ISPs or servers which
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block ICMP Fragmentation Needed packets. The symptoms of this
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problem are that everything works fine from your Linux
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firewall/router, but machines behind it can never exchange large
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packets:
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1) Web browsers connect, then hang with no data received.
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2) Small mail works fine, but large emails hang.
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3) ssh works fine, but scp hangs after initial handshaking.
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Workaround: activate this option and add a rule to your firewall
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configuration like:
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iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --clamp-mss-to-pmtu
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To compile it as a module, choose M here. If unsure, say N.
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# NAT + specific targets
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config IP_NF_NAT
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tristate "Full NAT"
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depends on IP_NF_IPTABLES && IP_NF_CONNTRACK
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help
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The Full NAT option allows masquerading, port forwarding and other
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forms of full Network Address Port Translation. It is controlled by
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the `nat' table in iptables: see the man page for iptables(8).
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To compile it as a module, choose M here. If unsure, say N.
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config IP_NF_NAT_NEEDED
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bool
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depends on IP_NF_NAT != n
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default y
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config IP_NF_TARGET_MASQUERADE
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tristate "MASQUERADE target support"
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depends on IP_NF_NAT
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help
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Masquerading is a special case of NAT: all outgoing connections are
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changed to seem to come from a particular interface's address, and
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if the interface goes down, those connections are lost. This is
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only useful for dialup accounts with dynamic IP address (ie. your IP
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address will be different on next dialup).
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_REDIRECT
|
|
tristate "REDIRECT target support"
|
|
depends on IP_NF_NAT
|
|
help
|
|
REDIRECT is a special case of NAT: all incoming connections are
|
|
mapped onto the incoming interface's address, causing the packets to
|
|
come to the local machine instead of passing through. This is
|
|
useful for transparent proxies.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_NETMAP
|
|
tristate "NETMAP target support"
|
|
depends on IP_NF_NAT
|
|
help
|
|
NETMAP is an implementation of static 1:1 NAT mapping of network
|
|
addresses. It maps the network address part, while keeping the host
|
|
address part intact. It is similar to Fast NAT, except that
|
|
Netfilter's connection tracking doesn't work well with Fast NAT.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_SAME
|
|
tristate "SAME target support"
|
|
depends on IP_NF_NAT
|
|
help
|
|
This option adds a `SAME' target, which works like the standard SNAT
|
|
target, but attempts to give clients the same IP for all connections.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_NAT_SNMP_BASIC
|
|
tristate "Basic SNMP-ALG support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && IP_NF_NAT
|
|
---help---
|
|
|
|
This module implements an Application Layer Gateway (ALG) for
|
|
SNMP payloads. In conjunction with NAT, it allows a network
|
|
management system to access multiple private networks with
|
|
conflicting addresses. It works by modifying IP addresses
|
|
inside SNMP payloads to match IP-layer NAT mapping.
|
|
|
|
This is the "basic" form of SNMP-ALG, as described in RFC 2962
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_NAT_IRC
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_IRC=y
|
|
default m if IP_NF_IRC=m
|
|
|
|
# If they want FTP, set to $CONFIG_IP_NF_NAT (m or y),
|
|
# or $CONFIG_IP_NF_FTP (m or y), whichever is weaker. Argh.
|
|
config IP_NF_NAT_FTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_FTP=y
|
|
default m if IP_NF_FTP=m
|
|
|
|
config IP_NF_NAT_TFTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_TFTP=y
|
|
default m if IP_NF_TFTP=m
|
|
|
|
config IP_NF_NAT_AMANDA
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_AMANDA=y
|
|
default m if IP_NF_AMANDA=m
|
|
|
|
# mangle + specific targets
|
|
config IP_NF_MANGLE
|
|
tristate "Packet mangling"
|
|
depends on IP_NF_IPTABLES
|
|
help
|
|
This option adds a `mangle' table to iptables: see the man page for
|
|
iptables(8). This table is used for various packet alterations
|
|
which can effect how the packet is routed.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_TOS
|
|
tristate "TOS target support"
|
|
depends on IP_NF_MANGLE
|
|
help
|
|
This option adds a `TOS' target, which allows you to create rules in
|
|
the `mangle' table which alter the Type Of Service field of an IP
|
|
packet prior to routing.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_ECN
|
|
tristate "ECN target support"
|
|
depends on IP_NF_MANGLE
|
|
---help---
|
|
This option adds a `ECN' target, which can be used in the iptables mangle
|
|
table.
|
|
|
|
You can use this target to remove the ECN bits from the IPv4 header of
|
|
an IP packet. This is particularly useful, if you need to work around
|
|
existing ECN blackholes on the internet, but don't want to disable
|
|
ECN support in general.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_DSCP
|
|
tristate "DSCP target support"
|
|
depends on IP_NF_MANGLE
|
|
help
|
|
This option adds a `DSCP' match, which allows you to match against
|
|
the IPv4 header DSCP field (DSCP codepoint).
|
|
|
|
The DSCP codepoint can have any value between 0x0 and 0x4f.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_MARK
|
|
tristate "MARK target support"
|
|
depends on IP_NF_MANGLE
|
|
help
|
|
This option adds a `MARK' target, which allows you to create rules
|
|
in the `mangle' table which alter the netfilter mark (nfmark) field
|
|
associated with the packet prior to routing. This can change
|
|
the routing method (see `Use netfilter MARK value as routing
|
|
key') and can also be used by other subsystems to change their
|
|
behavior.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_CLASSIFY
|
|
tristate "CLASSIFY target support"
|
|
depends on IP_NF_MANGLE
|
|
help
|
|
This option adds a `CLASSIFY' target, which enables the user to set
|
|
the priority of a packet. Some qdiscs can use this value for
|
|
classification, among these are:
|
|
|
|
atm, cbq, dsmark, pfifo_fast, htb, prio
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_CONNMARK
|
|
tristate 'CONNMARK target support'
|
|
depends on IP_NF_CONNTRACK_MARK && IP_NF_MANGLE
|
|
help
|
|
This option adds a `CONNMARK' target, which allows one to manipulate
|
|
the connection mark value. Similar to the MARK target, but
|
|
affects the connection mark value rather than the packet mark value.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/modules.txt>. The module will be called
|
|
ipt_CONNMARK.o. If unsure, say `N'.
|
|
|
|
config IP_NF_TARGET_CLUSTERIP
|
|
tristate "CLUSTERIP target support (EXPERIMENTAL)"
|
|
depends on IP_NF_CONNTRACK_MARK && IP_NF_IPTABLES && EXPERIMENTAL
|
|
help
|
|
The CLUSTERIP target allows you to build load-balancing clusters of
|
|
network servers without having a dedicated load-balancing
|
|
router/server/switch.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
# raw + specific targets
|
|
config IP_NF_RAW
|
|
tristate 'raw table support (required for NOTRACK/TRACE)'
|
|
depends on IP_NF_IPTABLES
|
|
help
|
|
This option adds a `raw' table to iptables. This table is the very
|
|
first in the netfilter framework and hooks in at the PREROUTING
|
|
and OUTPUT chains.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/modules.txt>. If unsure, say `N'.
|
|
|
|
config IP_NF_TARGET_NOTRACK
|
|
tristate 'NOTRACK target support'
|
|
depends on IP_NF_RAW
|
|
depends on IP_NF_CONNTRACK
|
|
help
|
|
The NOTRACK target allows a select rule to specify
|
|
which packets *not* to enter the conntrack/NAT
|
|
subsystem with all the consequences (no ICMP error tracking,
|
|
no protocol helpers for the selected packets).
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/modules.txt>. If unsure, say `N'.
|
|
|
|
|
|
# ARP tables
|
|
config IP_NF_ARPTABLES
|
|
tristate "ARP tables support"
|
|
help
|
|
arptables is a general, extensible packet identification framework.
|
|
The ARP packet filtering and mangling (manipulation)subsystems
|
|
use this: say Y or M here if you want to use either of those.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_ARPFILTER
|
|
tristate "ARP packet filtering"
|
|
depends on IP_NF_ARPTABLES
|
|
help
|
|
ARP packet filtering defines a table `filter', which has a series of
|
|
rules for simple ARP packet filtering at local input and
|
|
local output. On a bridge, you can also specify filtering rules
|
|
for forwarded ARP packets. See the man page for arptables(8).
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_ARP_MANGLE
|
|
tristate "ARP payload mangling"
|
|
depends on IP_NF_ARPTABLES
|
|
help
|
|
Allows altering the ARP packet payload: source and destination
|
|
hardware and network addresses.
|
|
|
|
config IP_NF_CONNTRACK_NETLINK
|
|
tristate 'Connection tracking netlink interface'
|
|
depends on IP_NF_CONNTRACK && NETFILTER_NETLINK
|
|
help
|
|
This option enables support for a netlink-based userspace interface
|
|
|
|
|
|
endmenu
|
|
|