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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# IP netfilter configuration
4#
5
6menu "IP: Netfilter Configuration"
7 depends on INET && NETFILTER
8
9config NF_DEFRAG_IPV4
10 tristate
11 default n
12
13# old sockopt interface and eval loop
14config IP_NF_IPTABLES_LEGACY
15 tristate "Legacy IP tables support"
16 default n
17 select NETFILTER_XTABLES
18 help
19 iptables is a legacy packet classifier.
20 This is not needed if you are using iptables over nftables
21 (iptables-nft).
22
23config NF_SOCKET_IPV4
24 tristate "IPv4 socket lookup support"
25 help
26 This option enables the IPv4 socket lookup infrastructure. This is
27 is required by the {ip,nf}tables socket match.
28
29config NF_TPROXY_IPV4
30 tristate "IPv4 tproxy support"
31
32if NF_TABLES
33
34config NF_TABLES_IPV4
35 bool "IPv4 nf_tables support"
36 help
37 This option enables the IPv4 support for nf_tables.
38
39if NF_TABLES_IPV4
40
41config NFT_REJECT_IPV4
42 select NF_REJECT_IPV4
43 default NFT_REJECT
44 tristate
45
46config NFT_DUP_IPV4
47 tristate "IPv4 nf_tables packet duplication support"
48 depends on !NF_CONNTRACK || NF_CONNTRACK
49 select NF_DUP_IPV4
50 help
51 This module enables IPv4 packet duplication support for nf_tables.
52
53config NFT_FIB_IPV4
54 select NFT_FIB
55 tristate "nf_tables fib / ip route lookup support"
56 help
57 This module enables IPv4 FIB lookups, e.g. for reverse path filtering.
58 It also allows query of the FIB for the route type, e.g. local, unicast,
59 multicast or blackhole.
60
61endif # NF_TABLES_IPV4
62
63config NF_TABLES_ARP
64 bool "ARP nf_tables support"
65 select NETFILTER_FAMILY_ARP
66 help
67 This option enables the ARP support for nf_tables.
68
69endif # NF_TABLES
70
71config NF_DUP_IPV4
72 tristate "Netfilter IPv4 packet duplication to alternate destination"
73 depends on !NF_CONNTRACK || NF_CONNTRACK
74 help
75 This option enables the nf_dup_ipv4 core, which duplicates an IPv4
76 packet to be rerouted to another destination.
77
78config NF_LOG_ARP
79 tristate "ARP packet logging"
80 default m if NETFILTER_ADVANCED=n
81 select NF_LOG_SYSLOG
82 help
83 This is a backwards-compat option for the user's convenience
84 (e.g. when running oldconfig). It selects CONFIG_NF_LOG_SYSLOG.
85
86config NF_LOG_IPV4
87 tristate "IPv4 packet logging"
88 default m if NETFILTER_ADVANCED=n
89 select NF_LOG_SYSLOG
90 help
91 This is a backwards-compat option for the user's convenience
92 (e.g. when running oldconfig). It selects CONFIG_NF_LOG_SYSLOG.
93
94config NF_REJECT_IPV4
95 tristate "IPv4 packet rejection"
96 default m if NETFILTER_ADVANCED=n
97
98if NF_NAT
99config NF_NAT_SNMP_BASIC
100 tristate "Basic SNMP-ALG support"
101 depends on NF_CONNTRACK_SNMP
102 depends on NETFILTER_ADVANCED
103 default NF_NAT && NF_CONNTRACK_SNMP
104 select ASN1
105 help
106
107 This module implements an Application Layer Gateway (ALG) for
108 SNMP payloads. In conjunction with NAT, it allows a network
109 management system to access multiple private networks with
110 conflicting addresses. It works by modifying IP addresses
111 inside SNMP payloads to match IP-layer NAT mapping.
112
113 This is the "basic" form of SNMP-ALG, as described in RFC 2962
114
115 To compile it as a module, choose M here. If unsure, say N.
116
117config NF_NAT_PPTP
118 tristate
119 depends on NF_CONNTRACK
120 default NF_CONNTRACK_PPTP
121
122config NF_NAT_H323
123 tristate
124 depends on NF_CONNTRACK
125 default NF_CONNTRACK_H323
126
127endif # NF_NAT
128
129config IP_NF_IPTABLES
130 tristate "IP tables support (required for filtering/masq/NAT)"
131 default m if NETFILTER_ADVANCED=n
132 select NETFILTER_XTABLES
133 help
134 iptables is a general, extensible packet identification framework.
135 The packet filtering and full NAT (masquerading, port forwarding,
136 etc) subsystems now use this: say `Y' or `M' here if you want to use
137 either of those.
138
139 To compile it as a module, choose M here. If unsure, say N.
140
141if IP_NF_IPTABLES
142
143# The matches.
144config IP_NF_MATCH_AH
145 tristate '"ah" match support'
146 depends on NETFILTER_ADVANCED
147 help
148 This match extension allows you to match a range of SPIs
149 inside AH header of IPSec packets.
150
151 To compile it as a module, choose M here. If unsure, say N.
152
153config IP_NF_MATCH_ECN
154 tristate '"ecn" match support'
155 depends on NETFILTER_ADVANCED
156 select NETFILTER_XT_MATCH_ECN
157 help
158 This is a backwards-compat option for the user's convenience
159 (e.g. when running oldconfig). It selects
160 CONFIG_NETFILTER_XT_MATCH_ECN.
161
162config IP_NF_MATCH_RPFILTER
163 tristate '"rpfilter" reverse path filter match support'
164 depends on NETFILTER_ADVANCED
165 depends on IP_NF_MANGLE || IP_NF_RAW || NFT_COMPAT
166 help
167 This option allows you to match packets whose replies would
168 go out via the interface the packet came in.
169
170 To compile it as a module, choose M here. If unsure, say N.
171 The module will be called ipt_rpfilter.
172
173config IP_NF_MATCH_TTL
174 tristate '"ttl" match support'
175 depends on NETFILTER_ADVANCED
176 select NETFILTER_XT_MATCH_HL
177 help
178 This is a backwards-compat option for the user's convenience
179 (e.g. when running oldconfig). It selects
180 CONFIG_NETFILTER_XT_MATCH_HL.
181
182# `filter', generic and specific targets
183config IP_NF_FILTER
184 tristate "Packet filtering"
185 default m if NETFILTER_ADVANCED=n
186 select IP_NF_IPTABLES_LEGACY
187 help
188 Packet filtering defines a table `filter', which has a series of
189 rules for simple packet filtering at local input, forwarding and
190 local output. See the man page for iptables(8).
191
192 To compile it as a module, choose M here. If unsure, say N.
193
194config IP_NF_TARGET_REJECT
195 tristate "REJECT target support"
196 depends on IP_NF_FILTER || NFT_COMPAT
197 select NF_REJECT_IPV4
198 default m if NETFILTER_ADVANCED=n
199 help
200 The REJECT target allows a filtering rule to specify that an ICMP
201 error should be issued in response to an incoming packet, rather
202 than silently being dropped.
203
204 To compile it as a module, choose M here. If unsure, say N.
205
206config IP_NF_TARGET_SYNPROXY
207 tristate "SYNPROXY target support"
208 depends on NF_CONNTRACK && NETFILTER_ADVANCED
209 select NETFILTER_SYNPROXY
210 select SYN_COOKIES
211 help
212 The SYNPROXY target allows you to intercept TCP connections and
213 establish them using syncookies before they are passed on to the
214 server. This allows to avoid conntrack and server resource usage
215 during SYN-flood attacks.
216
217 To compile it as a module, choose M here. If unsure, say N.
218
219# NAT + specific targets: nf_conntrack
220config IP_NF_NAT
221 tristate "iptables NAT support"
222 depends on NF_CONNTRACK
223 default m if NETFILTER_ADVANCED=n
224 select NF_NAT
225 select NETFILTER_XT_NAT
226 select IP_NF_IPTABLES_LEGACY
227 help
228 This enables the `nat' table in iptables. This allows masquerading,
229 port forwarding and other forms of full Network Address Port
230 Translation.
231
232 To compile it as a module, choose M here. If unsure, say N.
233
234if IP_NF_NAT
235
236config IP_NF_TARGET_MASQUERADE
237 tristate "MASQUERADE target support"
238 select NETFILTER_XT_TARGET_MASQUERADE
239 help
240 This is a backwards-compat option for the user's convenience
241 (e.g. when running oldconfig). It selects NETFILTER_XT_TARGET_MASQUERADE.
242
243config IP_NF_TARGET_NETMAP
244 tristate "NETMAP target support"
245 depends on NETFILTER_ADVANCED
246 select NETFILTER_XT_TARGET_NETMAP
247 help
248 This is a backwards-compat option for the user's convenience
249 (e.g. when running oldconfig). It selects
250 CONFIG_NETFILTER_XT_TARGET_NETMAP.
251
252config IP_NF_TARGET_REDIRECT
253 tristate "REDIRECT target support"
254 depends on NETFILTER_ADVANCED
255 select NETFILTER_XT_TARGET_REDIRECT
256 help
257 This is a backwards-compat option for the user's convenience
258 (e.g. when running oldconfig). It selects
259 CONFIG_NETFILTER_XT_TARGET_REDIRECT.
260
261endif # IP_NF_NAT
262
263# mangle + specific targets
264config IP_NF_MANGLE
265 tristate "Packet mangling"
266 default m if NETFILTER_ADVANCED=n
267 select IP_NF_IPTABLES_LEGACY
268 help
269 This option adds a `mangle' table to iptables: see the man page for
270 iptables(8). This table is used for various packet alterations
271 which can effect how the packet is routed.
272
273 To compile it as a module, choose M here. If unsure, say N.
274
275config IP_NF_TARGET_ECN
276 tristate "ECN target support"
277 depends on IP_NF_MANGLE || NFT_COMPAT
278 depends on NETFILTER_ADVANCED
279 help
280 This option adds a `ECN' target, which can be used in the iptables mangle
281 table.
282
283 You can use this target to remove the ECN bits from the IPv4 header of
284 an IP packet. This is particularly useful, if you need to work around
285 existing ECN blackholes on the internet, but don't want to disable
286 ECN support in general.
287
288 To compile it as a module, choose M here. If unsure, say N.
289
290config IP_NF_TARGET_TTL
291 tristate '"TTL" target support'
292 depends on NETFILTER_ADVANCED && IP_NF_MANGLE
293 select NETFILTER_XT_TARGET_HL
294 help
295 This is a backwards-compatible option for the user's convenience
296 (e.g. when running oldconfig). It selects
297 CONFIG_NETFILTER_XT_TARGET_HL.
298
299# raw + specific targets
300config IP_NF_RAW
301 tristate 'raw table support (required for NOTRACK/TRACE)'
302 select IP_NF_IPTABLES_LEGACY
303 help
304 This option adds a `raw' table to iptables. This table is the very
305 first in the netfilter framework and hooks in at the PREROUTING
306 and OUTPUT chains.
307
308 If you want to compile it as a module, say M here and read
309 <file:Documentation/kbuild/modules.rst>. If unsure, say `N'.
310
311# security table for MAC policy
312config IP_NF_SECURITY
313 tristate "Security table"
314 depends on SECURITY
315 depends on NETFILTER_ADVANCED
316 select IP_NF_IPTABLES_LEGACY
317 help
318 This option adds a `security' table to iptables, for use
319 with Mandatory Access Control (MAC) policy.
320
321 If unsure, say N.
322
323endif # IP_NF_IPTABLES
324
325# ARP tables
326config IP_NF_ARPTABLES
327 tristate "Legacy ARPTABLES support"
328 depends on NETFILTER_XTABLES
329 default n
330 help
331 arptables is a legacy packet classifier.
332 This is not needed if you are using arptables over nftables
333 (iptables-nft).
334
335config NFT_COMPAT_ARP
336 tristate
337 depends on NF_TABLES_ARP && NFT_COMPAT
338 default m if NFT_COMPAT=m
339 default y if NFT_COMPAT=y
340
341config IP_NF_ARPFILTER
342 tristate "arptables-legacy packet filtering support"
343 select IP_NF_ARPTABLES
344 select NETFILTER_FAMILY_ARP
345 depends on NETFILTER_XTABLES
346 help
347 ARP packet filtering defines a table `filter', which has a series of
348 rules for simple ARP packet filtering at local input and
349 local output. This is only needed for arptables-legacy(8).
350 Neither arptables-nft nor nftables need this to work.
351
352 To compile it as a module, choose M here. If unsure, say N.
353
354config IP_NF_ARP_MANGLE
355 tristate "ARP payload mangling"
356 depends on IP_NF_ARPTABLES || NFT_COMPAT_ARP
357 help
358 Allows altering the ARP packet payload: source and destination
359 hardware and network addresses.
360
361 This option is needed by both arptables-legacy and arptables-nft.
362 It is not used by nftables.
363
364endmenu
365
1#
2# IP netfilter configuration
3#
4
5menu "IP: Netfilter Configuration"
6 depends on INET && NETFILTER
7
8config NF_DEFRAG_IPV4
9 tristate
10 default n
11
12config NF_CONNTRACK_IPV4
13 tristate "IPv4 connection tracking support (required for NAT)"
14 depends on NF_CONNTRACK
15 default m if NETFILTER_ADVANCED=n
16 select NF_DEFRAG_IPV4
17 ---help---
18 Connection tracking keeps a record of what packets have passed
19 through your machine, in order to figure out how they are related
20 into connections.
21
22 This is IPv4 support on Layer 3 independent connection tracking.
23 Layer 3 independent connection tracking is experimental scheme
24 which generalize ip_conntrack to support other layer 3 protocols.
25
26 To compile it as a module, choose M here. If unsure, say N.
27
28config NF_CONNTRACK_PROC_COMPAT
29 bool "proc/sysctl compatibility with old connection tracking"
30 depends on NF_CONNTRACK_IPV4
31 default y
32 help
33 This option enables /proc and sysctl compatibility with the old
34 layer 3 dependent connection tracking. This is needed to keep
35 old programs that have not been adapted to the new names working.
36
37 If unsure, say Y.
38
39config IP_NF_QUEUE
40 tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
41 depends on NETFILTER_ADVANCED
42 help
43 Netfilter has the ability to queue packets to user space: the
44 netlink device can be used to access them using this driver.
45
46 This option enables the old IPv4-only "ip_queue" implementation
47 which has been obsoleted by the new "nfnetlink_queue" code (see
48 CONFIG_NETFILTER_NETLINK_QUEUE).
49
50 To compile it as a module, choose M here. If unsure, say N.
51
52config IP_NF_IPTABLES
53 tristate "IP tables support (required for filtering/masq/NAT)"
54 default m if NETFILTER_ADVANCED=n
55 select NETFILTER_XTABLES
56 help
57 iptables is a general, extensible packet identification framework.
58 The packet filtering and full NAT (masquerading, port forwarding,
59 etc) subsystems now use this: say `Y' or `M' here if you want to use
60 either of those.
61
62 To compile it as a module, choose M here. If unsure, say N.
63
64if IP_NF_IPTABLES
65
66# The matches.
67config IP_NF_MATCH_AH
68 tristate '"ah" match support'
69 depends on NETFILTER_ADVANCED
70 help
71 This match extension allows you to match a range of SPIs
72 inside AH header of IPSec packets.
73
74 To compile it as a module, choose M here. If unsure, say N.
75
76config IP_NF_MATCH_ECN
77 tristate '"ecn" match support'
78 depends on NETFILTER_ADVANCED
79 help
80 This option adds a `ECN' match, which allows you to match against
81 the IPv4 and TCP header ECN fields.
82
83 To compile it as a module, choose M here. If unsure, say N.
84
85config IP_NF_MATCH_TTL
86 tristate '"ttl" match support'
87 depends on NETFILTER_ADVANCED
88 select NETFILTER_XT_MATCH_HL
89 ---help---
90 This is a backwards-compat option for the user's convenience
91 (e.g. when running oldconfig). It selects
92 CONFIG_NETFILTER_XT_MATCH_HL.
93
94# `filter', generic and specific targets
95config IP_NF_FILTER
96 tristate "Packet filtering"
97 default m if NETFILTER_ADVANCED=n
98 help
99 Packet filtering defines a table `filter', which has a series of
100 rules for simple packet filtering at local input, forwarding and
101 local output. See the man page for iptables(8).
102
103 To compile it as a module, choose M here. If unsure, say N.
104
105config IP_NF_TARGET_REJECT
106 tristate "REJECT target support"
107 depends on IP_NF_FILTER
108 default m if NETFILTER_ADVANCED=n
109 help
110 The REJECT target allows a filtering rule to specify that an ICMP
111 error should be issued in response to an incoming packet, rather
112 than silently being dropped.
113
114 To compile it as a module, choose M here. If unsure, say N.
115
116config IP_NF_TARGET_LOG
117 tristate "LOG target support"
118 default m if NETFILTER_ADVANCED=n
119 help
120 This option adds a `LOG' target, which allows you to create rules in
121 any iptables table which records the packet header to the syslog.
122
123 To compile it as a module, choose M here. If unsure, say N.
124
125config IP_NF_TARGET_ULOG
126 tristate "ULOG target support"
127 default m if NETFILTER_ADVANCED=n
128 ---help---
129
130 This option enables the old IPv4-only "ipt_ULOG" implementation
131 which has been obsoleted by the new "nfnetlink_log" code (see
132 CONFIG_NETFILTER_NETLINK_LOG).
133
134 This option adds a `ULOG' target, which allows you to create rules in
135 any iptables table. The packet is passed to a userspace logging
136 daemon using netlink multicast sockets; unlike the LOG target
137 which can only be viewed through syslog.
138
139 The appropriate userspace logging daemon (ulogd) may be obtained from
140 <http://www.netfilter.org/projects/ulogd/index.html>
141
142 To compile it as a module, choose M here. If unsure, say N.
143
144# NAT + specific targets: nf_conntrack
145config NF_NAT
146 tristate "Full NAT"
147 depends on NF_CONNTRACK_IPV4
148 default m if NETFILTER_ADVANCED=n
149 help
150 The Full NAT option allows masquerading, port forwarding and other
151 forms of full Network Address Port Translation. It is controlled by
152 the `nat' table in iptables: see the man page for iptables(8).
153
154 To compile it as a module, choose M here. If unsure, say N.
155
156config NF_NAT_NEEDED
157 bool
158 depends on NF_NAT
159 default y
160
161config IP_NF_TARGET_MASQUERADE
162 tristate "MASQUERADE target support"
163 depends on NF_NAT
164 default m if NETFILTER_ADVANCED=n
165 help
166 Masquerading is a special case of NAT: all outgoing connections are
167 changed to seem to come from a particular interface's address, and
168 if the interface goes down, those connections are lost. This is
169 only useful for dialup accounts with dynamic IP address (ie. your IP
170 address will be different on next dialup).
171
172 To compile it as a module, choose M here. If unsure, say N.
173
174config IP_NF_TARGET_NETMAP
175 tristate "NETMAP target support"
176 depends on NF_NAT
177 depends on NETFILTER_ADVANCED
178 help
179 NETMAP is an implementation of static 1:1 NAT mapping of network
180 addresses. It maps the network address part, while keeping the host
181 address part intact.
182
183 To compile it as a module, choose M here. If unsure, say N.
184
185config IP_NF_TARGET_REDIRECT
186 tristate "REDIRECT target support"
187 depends on NF_NAT
188 depends on NETFILTER_ADVANCED
189 help
190 REDIRECT is a special case of NAT: all incoming connections are
191 mapped onto the incoming interface's address, causing the packets to
192 come to the local machine instead of passing through. This is
193 useful for transparent proxies.
194
195 To compile it as a module, choose M here. If unsure, say N.
196
197config NF_NAT_SNMP_BASIC
198 tristate "Basic SNMP-ALG support"
199 depends on NF_CONNTRACK_SNMP && NF_NAT
200 depends on NETFILTER_ADVANCED
201 default NF_NAT && NF_CONNTRACK_SNMP
202 ---help---
203
204 This module implements an Application Layer Gateway (ALG) for
205 SNMP payloads. In conjunction with NAT, it allows a network
206 management system to access multiple private networks with
207 conflicting addresses. It works by modifying IP addresses
208 inside SNMP payloads to match IP-layer NAT mapping.
209
210 This is the "basic" form of SNMP-ALG, as described in RFC 2962
211
212 To compile it as a module, choose M here. If unsure, say N.
213
214# If they want FTP, set to $CONFIG_IP_NF_NAT (m or y),
215# or $CONFIG_IP_NF_FTP (m or y), whichever is weaker.
216# From kconfig-language.txt:
217#
218# <expr> '&&' <expr> (6)
219#
220# (6) Returns the result of min(/expr/, /expr/).
221config NF_NAT_PROTO_DCCP
222 tristate
223 depends on NF_NAT && NF_CT_PROTO_DCCP
224 default NF_NAT && NF_CT_PROTO_DCCP
225
226config NF_NAT_PROTO_GRE
227 tristate
228 depends on NF_NAT && NF_CT_PROTO_GRE
229
230config NF_NAT_PROTO_UDPLITE
231 tristate
232 depends on NF_NAT && NF_CT_PROTO_UDPLITE
233 default NF_NAT && NF_CT_PROTO_UDPLITE
234
235config NF_NAT_PROTO_SCTP
236 tristate
237 default NF_NAT && NF_CT_PROTO_SCTP
238 depends on NF_NAT && NF_CT_PROTO_SCTP
239 select LIBCRC32C
240
241config NF_NAT_FTP
242 tristate
243 depends on NF_CONNTRACK && NF_NAT
244 default NF_NAT && NF_CONNTRACK_FTP
245
246config NF_NAT_IRC
247 tristate
248 depends on NF_CONNTRACK && NF_NAT
249 default NF_NAT && NF_CONNTRACK_IRC
250
251config NF_NAT_TFTP
252 tristate
253 depends on NF_CONNTRACK && NF_NAT
254 default NF_NAT && NF_CONNTRACK_TFTP
255
256config NF_NAT_AMANDA
257 tristate
258 depends on NF_CONNTRACK && NF_NAT
259 default NF_NAT && NF_CONNTRACK_AMANDA
260
261config NF_NAT_PPTP
262 tristate
263 depends on NF_CONNTRACK && NF_NAT
264 default NF_NAT && NF_CONNTRACK_PPTP
265 select NF_NAT_PROTO_GRE
266
267config NF_NAT_H323
268 tristate
269 depends on NF_CONNTRACK && NF_NAT
270 default NF_NAT && NF_CONNTRACK_H323
271
272config NF_NAT_SIP
273 tristate
274 depends on NF_CONNTRACK && NF_NAT
275 default NF_NAT && NF_CONNTRACK_SIP
276
277# mangle + specific targets
278config IP_NF_MANGLE
279 tristate "Packet mangling"
280 default m if NETFILTER_ADVANCED=n
281 help
282 This option adds a `mangle' table to iptables: see the man page for
283 iptables(8). This table is used for various packet alterations
284 which can effect how the packet is routed.
285
286 To compile it as a module, choose M here. If unsure, say N.
287
288config IP_NF_TARGET_CLUSTERIP
289 tristate "CLUSTERIP target support (EXPERIMENTAL)"
290 depends on IP_NF_MANGLE && EXPERIMENTAL
291 depends on NF_CONNTRACK_IPV4
292 depends on NETFILTER_ADVANCED
293 select NF_CONNTRACK_MARK
294 help
295 The CLUSTERIP target allows you to build load-balancing clusters of
296 network servers without having a dedicated load-balancing
297 router/server/switch.
298
299 To compile it as a module, choose M here. If unsure, say N.
300
301config IP_NF_TARGET_ECN
302 tristate "ECN target support"
303 depends on IP_NF_MANGLE
304 depends on NETFILTER_ADVANCED
305 ---help---
306 This option adds a `ECN' target, which can be used in the iptables mangle
307 table.
308
309 You can use this target to remove the ECN bits from the IPv4 header of
310 an IP packet. This is particularly useful, if you need to work around
311 existing ECN blackholes on the internet, but don't want to disable
312 ECN support in general.
313
314 To compile it as a module, choose M here. If unsure, say N.
315
316config IP_NF_TARGET_TTL
317 tristate '"TTL" target support'
318 depends on NETFILTER_ADVANCED && IP_NF_MANGLE
319 select NETFILTER_XT_TARGET_HL
320 ---help---
321 This is a backwards-compatible option for the user's convenience
322 (e.g. when running oldconfig). It selects
323 CONFIG_NETFILTER_XT_TARGET_HL.
324
325# raw + specific targets
326config IP_NF_RAW
327 tristate 'raw table support (required for NOTRACK/TRACE)'
328 depends on NETFILTER_ADVANCED
329 help
330 This option adds a `raw' table to iptables. This table is the very
331 first in the netfilter framework and hooks in at the PREROUTING
332 and OUTPUT chains.
333
334 If you want to compile it as a module, say M here and read
335 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
336
337# security table for MAC policy
338config IP_NF_SECURITY
339 tristate "Security table"
340 depends on SECURITY
341 depends on NETFILTER_ADVANCED
342 help
343 This option adds a `security' table to iptables, for use
344 with Mandatory Access Control (MAC) policy.
345
346 If unsure, say N.
347
348endif # IP_NF_IPTABLES
349
350# ARP tables
351config IP_NF_ARPTABLES
352 tristate "ARP tables support"
353 select NETFILTER_XTABLES
354 depends on NETFILTER_ADVANCED
355 help
356 arptables is a general, extensible packet identification framework.
357 The ARP packet filtering and mangling (manipulation)subsystems
358 use this: say Y or M here if you want to use either of those.
359
360 To compile it as a module, choose M here. If unsure, say N.
361
362if IP_NF_ARPTABLES
363
364config IP_NF_ARPFILTER
365 tristate "ARP packet filtering"
366 help
367 ARP packet filtering defines a table `filter', which has a series of
368 rules for simple ARP packet filtering at local input and
369 local output. On a bridge, you can also specify filtering rules
370 for forwarded ARP packets. See the man page for arptables(8).
371
372 To compile it as a module, choose M here. If unsure, say N.
373
374config IP_NF_ARP_MANGLE
375 tristate "ARP payload mangling"
376 help
377 Allows altering the ARP packet payload: source and destination
378 hardware and network addresses.
379
380endif # IP_NF_ARPTABLES
381
382endmenu
383