menu "Core Netfilter Configuration"	depends on NET && NETFILTER config NETFILTER_NETLINK       tristate "Netfilter netlink interface"       help         If this option is enabled, the kernel will include support         for the new netfilter netlink interface. config NETFILTER_NETLINK_QUEUE	tristate "Netfilter NFQUEUE over NFNETLINK interface"	depends on NETFILTER_NETLINK	help	  If this option is enabled, the kernel will include support	  for queueing packets via NFNETLINK.	  config NETFILTER_NETLINK_LOG	tristate "Netfilter LOG over NFNETLINK interface"	depends on NETFILTER_NETLINK	help	  If this option is enabled, the kernel will include support	  for logging packets via NFNETLINK. 	  This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms,	  and is also scheduled to replace the old syslog-based ipt_LOG	  and ip6t_LOG modules. config NF_CONNTRACK	tristate "Layer 3 Independent Connection tracking (EXPERIMENTAL)"	depends on EXPERIMENTAL && IP_NF_CONNTRACK=n	default n	---help---	  Connection tracking keeps a record of what packets have passed	  through your machine, in order to figure out how they are related	  into connections. 	  Layer 3 independent connection tracking is experimental scheme	  which generalize ip_conntrack to support other layer 3 protocols. 	  To compile it as a module, choose M here.  If unsure, say N. config NF_CT_ACCT	bool "Connection tracking flow accounting"	depends on NF_CONNTRACK	help	  If this option is enabled, the connection tracking code will	  keep per-flow packet and byte counters. 	  Those counters can be used for flow-based accounting or the	  `connbytes' match. 	  If unsure, say `N'. config NF_CONNTRACK_MARK	bool  'Connection mark tracking support'	depends on NF_CONNTRACK	help	  This option enables support for connection marks, used by the	  `CONNMARK' target and `connmark' match. Similar to the mark value	  of packets, but this mark value is kept in the conntrack session	  instead of the individual packets. config NF_CONNTRACK_SECMARK	bool  'Connection tracking security mark support'	depends on NF_CONNTRACK && NETWORK_SECMARK	help	  This option enables security markings to be applied to	  connections.  Typically they are copied to connections from	  packets using the CONNSECMARK target and copied back from	  connections to packets with the same target, with the packets	  being originally labeled via SECMARK. 	  If unsure, say 'N'. config NF_CONNTRACK_EVENTS	bool "Connection tracking events (EXPERIMENTAL)"	depends on EXPERIMENTAL && NF_CONNTRACK	help	  If this option is enabled, the connection tracking code will	  provide a notifier chain that can be used by other kernel code	  to get notified about changes in the connection tracking state. 	  If unsure, say `N'. config NF_CT_PROTO_SCTP	tristate 'SCTP protocol on new connection tracking support (EXPERIMENTAL)'	depends on EXPERIMENTAL && NF_CONNTRACK	default n	help	  With this option enabled, the layer 3 independent connection	  tracking code will be able to do state tracking on SCTP connections. 	  If you want to compile it as a module, say M here and read	  Documentation/modules.txt.  If unsure, say `N'. config NF_CONNTRACK_FTP	tristate "FTP support on new connection tracking (EXPERIMENTAL)"	depends on EXPERIMENTAL && NF_CONNTRACK	help	  Tracking FTP connections is problematic: special helpers are	  required for tracking them, and doing masquerading and other forms	  of Network Address Translation on them. 	  This is FTP support on Layer 3 independent connection tracking.	  Layer 3 independent connection tracking is experimental scheme	  which generalize ip_conntrack to support other layer 3 protocols. 	  To compile it as a module, choose M here.  If unsure, say N. config NF_CT_NETLINK	tristate 'Connection tracking netlink interface (EXPERIMENTAL)'	depends on EXPERIMENTAL && NF_CONNTRACK && NETFILTER_NETLINK	depends on NF_CONNTRACK!=y || NETFILTER_NETLINK!=m	help	  This option enables support for a netlink-based userspace interface config NETFILTER_XTABLES	tristate "Netfilter Xtables support (required for ip_tables)"	help	  This is required if you intend to use any of ip_tables,	  ip6_tables or arp_tables. # alphabetically ordered list of targets config NETFILTER_XT_TARGET_CLASSIFY	tristate '"CLASSIFY" target support'	depends on NETFILTER_XTABLES	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 NETFILTER_XT_TARGET_CONNMARK	tristate  '"CONNMARK" target support'	depends on NETFILTER_XTABLES	depends on IP_NF_MANGLE || IP6_NF_MANGLE	depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)	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 NETFILTER_XT_TARGET_MARK	tristate '"MARK" target support'	depends on NETFILTER_XTABLES	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 NETFILTER_XT_TARGET_NFQUEUE	tristate '"NFQUEUE" target Support'	depends on NETFILTER_XTABLES	help	  This target replaced the old obsolete QUEUE target. 	  As opposed to QUEUE, it supports 65535 different queues,	  not just one. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_TARGET_NOTRACK	tristate  '"NOTRACK" target support'	depends on NETFILTER_XTABLES	depends on IP_NF_RAW || IP6_NF_RAW	depends on IP_NF_CONNTRACK || 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'. config NETFILTER_XT_TARGET_SECMARK	tristate '"SECMARK" target support'	depends on NETFILTER_XTABLES && NETWORK_SECMARK	help	  The SECMARK target allows security marking of network	  packets, for use with security subsystems. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_TARGET_CONNSECMARK	tristate '"CONNSECMARK" target support'	depends on NETFILTER_XTABLES && (NF_CONNTRACK_SECMARK || IP_NF_CONNTRACK_SECMARK)	help	  The CONNSECMARK target copies security markings from packets	  to connections, and restores security markings from connections	  to packets (if the packets are not already marked).  This would	  normally be used in conjunction with the SECMARK target. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_COMMENT	tristate  '"comment" match support'	depends on NETFILTER_XTABLES	help	  This option adds a `comment' dummy-match, which allows you to put	  comments in your iptables ruleset. 	  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_CONNBYTES	tristate  '"connbytes" per-connection counter match support'	depends on NETFILTER_XTABLES	depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || (NF_CT_ACCT && NF_CONNTRACK)	help	  This option adds a `connbytes' match, which allows you to match the	  number of bytes and/or packets for each direction within a connection. 	  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_CONNMARK	tristate  '"connmark" connection mark match support'	depends on NETFILTER_XTABLES	depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)	help	  This option adds a `connmark' match, which allows you to match the	  connection mark value previously set for the session by `CONNMARK'. 		  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 NETFILTER_XT_MATCH_CONNTRACK	tristate '"conntrack" connection tracking match support'	depends on NETFILTER_XTABLES	depends on IP_NF_CONNTRACK || NF_CONNTRACK	help	  This is a general conntrack match module, a superset of the state match. 	  It allows matching on additional conntrack information, which is	  useful in complex configurations, such as NAT gateways with multiple	  internet links or tunnels. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_DCCP	tristate  '"DCCP" protocol match support'	depends on NETFILTER_XTABLES	help	  With this option enabled, you will be able to use the iptables	  `dccp' match in order to match on DCCP source/destination ports	  and DCCP flags. 	  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_ESP	tristate '"ESP" match support'	depends on NETFILTER_XTABLES	help	  This match extension allows you to match a range of SPIs	  inside ESP header of IPSec packets. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_HELPER	tristate '"helper" match support'	depends on NETFILTER_XTABLES	depends on IP_NF_CONNTRACK || NF_CONNTRACK	help	  Helper matching allows you to match packets in dynamic connections	  tracked by a conntrack-helper, ie. ip_conntrack_ftp 	  To compile it as a module, choose M here.  If unsure, say Y. config NETFILTER_XT_MATCH_LENGTH	tristate '"length" match support'	depends on NETFILTER_XTABLES	help	  This option allows you to match the length of a packet against a	  specific value or range of values. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_LIMIT	tristate '"limit" match support'	depends on NETFILTER_XTABLES	help	  limit matching allows you to control the rate at which a rule can be	  matched: mainly useful in combination with the LOG target ("LOG	  target support", below) and to avoid some Denial of Service attacks. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_MAC	tristate '"mac" address match support'	depends on NETFILTER_XTABLES	help	  MAC matching allows you to match packets based on the source	  Ethernet address of the packet. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_MARK	tristate '"mark" match support'	depends on NETFILTER_XTABLES	help	  Netfilter mark matching allows you to match packets based on the	  `nfmark' value in the packet.  This can be set by the MARK target	  (see below). 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_POLICY	tristate 'IPsec "policy" match support'	depends on NETFILTER_XTABLES && XFRM	help	  Policy matching allows you to match packets based on the	  IPsec policy that was used during decapsulation/will	  be used during encapsulation. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_MULTIPORT	tristate "Multiple port match support"	depends on NETFILTER_XTABLES	help	  Multiport matching allows you to match TCP or UDP packets based on	  a series of source or destination ports: normally a rule can only	  match a single range of ports. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_PHYSDEV	tristate '"physdev" match support'	depends on NETFILTER_XTABLES && BRIDGE_NETFILTER	help	  Physdev packet matching matches against the physical bridge ports	  the IP packet arrived on or will leave by. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_PKTTYPE	tristate '"pkttype" packet type match support'	depends on NETFILTER_XTABLES	help	  Packet type matching allows you to match a packet by	  its "class", eg. BROADCAST, MULTICAST, ... 	  Typical usage:	  iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_QUOTA	tristate '"quota" match support'	depends on NETFILTER_XTABLES	help	  This option adds a `quota' match, which allows to match on a	  byte counter. 	  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_REALM	tristate  '"realm" match support'	depends on NETFILTER_XTABLES	select NET_CLS_ROUTE	help	  This option adds a `realm' match, which allows you to use the realm	  key from the routing subsystem inside iptables.		  This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option 	  in tc world.		  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_SCTP	tristate  '"sctp" protocol match support'	depends on NETFILTER_XTABLES	help	  With this option enabled, you will be able to use the 	  `sctp' match in order to match on SCTP source/destination ports	  and SCTP chunk types. 	  If you want to compile it as a module, say M here and read	  <file:Documentation/modules.txt>.  If unsure, say `N'. config NETFILTER_XT_MATCH_STATE	tristate '"state" match support'	depends on NETFILTER_XTABLES	depends on IP_NF_CONNTRACK || NF_CONNTRACK	help	  Connection state matching allows you to match packets based on their	  relationship to a tracked connection (ie. previous packets).  This	  is a powerful tool for packet classification. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_STATISTIC	tristate '"statistic" match support'	depends on NETFILTER_XTABLES	help	  statistic module config NETFILTER_XT_MATCH_STRING	tristate  '"string" match support'	depends on NETFILTER_XTABLES	select TEXTSEARCH	select TEXTSEARCH_KMP	select TEXTSEARCH_BM	select TEXTSEARCH_FSM	help	  This option adds a `string' match, which allows you to look for	  pattern matchings in packets. 	  To compile it as a module, choose M here.  If unsure, say N. config NETFILTER_XT_MATCH_TCPMSS	tristate '"tcpmss" match support'	depends on NETFILTER_XTABLES	help	  This option adds a `tcpmss' match, which allows you to examine the	  MSS value of TCP SYN packets, which control the maximum packet size	  for that connection. 	  To compile it as a module, choose M here.  If unsure, say N. endmenu