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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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a536df35b3
Add IPv4 and IPv6 capable nf_conntrack port of the TFTP conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
670 lines
22 KiB
Text
670 lines
22 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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config NF_CONNTRACK_IPV4
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tristate "IPv4 support for new connection tracking (required for NAT) (EXPERIMENTAL)"
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depends on EXPERIMENTAL && NF_CONNTRACK
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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 IPv4 support on Layer 3 independent connection tracking.
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Layer 3 independent connection tracking is experimental scheme
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which generalize ip_conntrack to support other layer 3 protocols.
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To compile it as a module, choose M here. If unsure, say N.
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config NF_CONNTRACK_PROC_COMPAT
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bool "proc/sysctl compatibility with old connection tracking"
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depends on NF_CONNTRACK_IPV4
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default y
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help
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This option enables /proc and sysctl compatibility with the old
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layer 3 dependant connection tracking. This is needed to keep
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old programs that have not been adapted to the new names working.
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If unsure, say Y.
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# connection tracking, helpers and protocols
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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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depends on IP_NF_CONNTRACK
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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_SECMARK
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bool 'Connection tracking security mark support'
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depends on IP_NF_CONNTRACK && NETWORK_SECMARK
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help
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This option enables security markings to be applied to
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connections. Typically they are copied to connections from
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packets using the CONNSECMARK target and copied back from
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connections to packets with the same target, with the packets
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being originally labeled via SECMARK.
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If unsure, say 'N'.
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config IP_NF_CONNTRACK_EVENTS
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bool "Connection tracking events (EXPERIMENTAL)"
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depends on EXPERIMENTAL && 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_CONNTRACK_NETLINK
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tristate 'Connection tracking netlink interface (EXPERIMENTAL)'
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depends on EXPERIMENTAL && IP_NF_CONNTRACK && NETFILTER_NETLINK
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depends on IP_NF_CONNTRACK!=y || NETFILTER_NETLINK!=m
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depends on IP_NF_NAT=n || IP_NF_NAT
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help
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This option enables support for a netlink-based userspace interface
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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_NETBIOS_NS
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tristate "NetBIOS name service protocol support (EXPERIMENTAL)"
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depends on IP_NF_CONNTRACK && EXPERIMENTAL
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help
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NetBIOS name service requests are sent as broadcast messages from an
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unprivileged port and responded to with unicast messages to the
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same port. This make them hard to firewall properly because connection
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tracking doesn't deal with broadcasts. This helper tracks locally
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originating NetBIOS name service requests and the corresponding
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responses. It relies on correct IP address configuration, specifically
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netmask and broadcast address. When properly configured, the output
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of "ip address show" should look similar to this:
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$ ip -4 address show eth0
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4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
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inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0
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To compile it as a module, choose M here. If unsure, say N.
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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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select TEXTSEARCH
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select TEXTSEARCH_KMP
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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_PPTP
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tristate 'PPTP protocol support'
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depends on IP_NF_CONNTRACK
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help
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This module adds support for PPTP (Point to Point Tunnelling
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Protocol, RFC2637) connection tracking and NAT.
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If you are running PPTP sessions over a stateful firewall or NAT
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box, you may want to enable this feature.
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Please note that not all PPTP modes of operation are supported yet.
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For more info, read top of the file
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net/ipv4/netfilter/ip_conntrack_pptp.c
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If you want to compile it as a module, say M here and read
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Documentation/modules.txt. If unsure, say `N'.
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config IP_NF_H323
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tristate 'H.323 protocol support (EXPERIMENTAL)'
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depends on IP_NF_CONNTRACK && EXPERIMENTAL
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help
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H.323 is a VoIP signalling protocol from ITU-T. As one of the most
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important VoIP protocols, it is widely used by voice hardware and
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software including voice gateways, IP phones, Netmeeting, OpenPhone,
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Gnomemeeting, etc.
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With this module you can support H.323 on a connection tracking/NAT
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firewall.
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This module supports RAS, Fast Start, H.245 Tunnelling, Call
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Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat,
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whiteboard, file transfer, etc. For more information, please
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visit http://nath323.sourceforge.net/.
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If you want to compile it as a module, say 'M' here and read
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Documentation/modules.txt. If unsure, say 'N'.
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config IP_NF_SIP
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tristate "SIP protocol support (EXPERIMENTAL)"
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depends on IP_NF_CONNTRACK && EXPERIMENTAL
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help
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SIP is an application-layer control protocol that can establish,
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modify, and terminate multimedia sessions (conferences) such as
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Internet telephony calls. With the ip_conntrack_sip and
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the ip_nat_sip modules you can support the protocol on a connection
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tracking/NATing firewall.
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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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depends on NETFILTER_XTABLES
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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_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_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_AH
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tristate "AH match support"
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depends on IP_NF_IPTABLES
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help
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This match extension allows you to match a range of SPIs
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inside AH header 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_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_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_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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# `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 enables the old IPv4-only "ipt_ULOG" implementation
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which has been obsoleted by the new "nfnetlink_log" code (see
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CONFIG_NETFILTER_NETLINK_LOG).
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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 appropriate 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: ip_conntrack
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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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# NAT + specific targets: nf_conntrack
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config NF_NAT
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tristate "Full NAT"
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depends on IP_NF_IPTABLES && 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
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default y
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config NF_NAT_NEEDED
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bool
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depends on NF_NAT
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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 (NF_NAT || 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).
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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_REDIRECT
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tristate "REDIRECT target support"
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depends on (NF_NAT || IP_NF_NAT)
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help
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REDIRECT is a special case of NAT: all incoming connections are
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mapped onto the incoming interface's address, causing the packets to
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come to the local machine instead of passing through. This is
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useful for transparent proxies.
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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_NETMAP
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tristate "NETMAP target support"
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depends on (NF_NAT || IP_NF_NAT)
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help
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NETMAP is an implementation of static 1:1 NAT mapping of network
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addresses. It maps the network address part, while keeping the host
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address part intact. It is similar to Fast NAT, except that
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Netfilter's connection tracking doesn't work well with Fast NAT.
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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_SAME
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tristate "SAME target support"
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depends on (NF_NAT || IP_NF_NAT)
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help
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This option adds a `SAME' target, which works like the standard SNAT
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target, but attempts to give clients the same IP for all connections.
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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_SNMP_BASIC
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tristate "Basic SNMP-ALG support (EXPERIMENTAL)"
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depends on EXPERIMENTAL && IP_NF_NAT
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---help---
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This module implements an Application Layer Gateway (ALG) for
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SNMP payloads. In conjunction with NAT, it allows a network
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management system to access multiple private networks with
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conflicting addresses. It works by modifying IP addresses
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inside SNMP payloads to match IP-layer NAT mapping.
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This is the "basic" form of SNMP-ALG, as described in RFC 2962
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To compile it as a module, choose M here. If unsure, say N.
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# If they want FTP, set to $CONFIG_IP_NF_NAT (m or y),
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# or $CONFIG_IP_NF_FTP (m or y), whichever is weaker.
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# From kconfig-language.txt:
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#
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# <expr> '&&' <expr> (6)
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#
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# (6) Returns the result of min(/expr/, /expr/).
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config NF_NAT_PROTO_GRE
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tristate
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depends on NF_NAT && NF_CT_PROTO_GRE
|
|
|
|
config IP_NF_NAT_FTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES && IP_NF_CONNTRACK && IP_NF_NAT
|
|
default IP_NF_NAT && IP_NF_FTP
|
|
|
|
config NF_NAT_FTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_FTP
|
|
|
|
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
|
|
|
|
config NF_NAT_IRC
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_IRC
|
|
|
|
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 NF_NAT_TFTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_TFTP
|
|
|
|
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
|
|
|
|
config NF_NAT_AMANDA
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_AMANDA
|
|
|
|
config IP_NF_NAT_PPTP
|
|
tristate
|
|
depends on IP_NF_NAT!=n && IP_NF_PPTP!=n
|
|
default IP_NF_NAT if IP_NF_PPTP=y
|
|
default m if IP_NF_PPTP=m
|
|
|
|
config NF_NAT_PPTP
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_PPTP
|
|
select NF_NAT_PROTO_GRE
|
|
|
|
config IP_NF_NAT_H323
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_H323=y
|
|
default m if IP_NF_H323=m
|
|
|
|
config NF_NAT_H323
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_H323
|
|
|
|
config IP_NF_NAT_SIP
|
|
tristate
|
|
depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
|
|
default IP_NF_NAT if IP_NF_SIP=y
|
|
default m if IP_NF_SIP=m
|
|
|
|
config NF_NAT_SIP
|
|
tristate
|
|
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
|
|
default NF_NAT && NF_CONNTRACK_SIP
|
|
|
|
# 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_TTL
|
|
tristate 'TTL target support'
|
|
depends on IP_NF_MANGLE
|
|
help
|
|
This option adds a `TTL' target, which enables the user to modify
|
|
the TTL value of the IP header.
|
|
|
|
While it is safe to decrement/lower the TTL, this target also enables
|
|
functionality to increment and set the TTL value of the IP header to
|
|
arbitrary values. This is EXTREMELY DANGEROUS since you can easily
|
|
create immortal packets that loop forever on the network.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config IP_NF_TARGET_CLUSTERIP
|
|
tristate "CLUSTERIP target support (EXPERIMENTAL)"
|
|
depends on IP_NF_MANGLE && EXPERIMENTAL
|
|
depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK_IPV4)
|
|
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'.
|
|
|
|
# ARP tables
|
|
config IP_NF_ARPTABLES
|
|
tristate "ARP tables support"
|
|
depends on NETFILTER_XTABLES
|
|
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.
|
|
|
|
endmenu
|
|
|