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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_PROCFS && 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 NF_TABLES_IPV4
40 depends on NF_TABLES
41 tristate "IPv4 nf_tables support"
42 help
43 This option enables the IPv4 support for nf_tables.
44
45config NFT_CHAIN_ROUTE_IPV4
46 depends on NF_TABLES_IPV4
47 tristate "IPv4 nf_tables route chain support"
48 help
49 This option enables the "route" chain for IPv4 in nf_tables. This
50 chain type is used to force packet re-routing after mangling header
51 fields such as the source, destination, type of service and
52 the packet mark.
53
54config NFT_CHAIN_NAT_IPV4
55 depends on NF_TABLES_IPV4
56 depends on NF_NAT_IPV4 && NFT_NAT
57 tristate "IPv4 nf_tables nat chain support"
58 help
59 This option enables the "nat" chain for IPv4 in nf_tables. This
60 chain type is used to perform Network Address Translation (NAT)
61 packet transformations such as the source, destination address and
62 source and destination ports.
63
64config NFT_REJECT_IPV4
65 depends on NF_TABLES_IPV4
66 default NFT_REJECT
67 tristate
68
69config NF_TABLES_ARP
70 depends on NF_TABLES
71 tristate "ARP nf_tables support"
72 help
73 This option enables the ARP support for nf_tables.
74
75config IP_NF_IPTABLES
76 tristate "IP tables support (required for filtering/masq/NAT)"
77 default m if NETFILTER_ADVANCED=n
78 select NETFILTER_XTABLES
79 help
80 iptables is a general, extensible packet identification framework.
81 The packet filtering and full NAT (masquerading, port forwarding,
82 etc) subsystems now use this: say `Y' or `M' here if you want to use
83 either of those.
84
85 To compile it as a module, choose M here. If unsure, say N.
86
87if IP_NF_IPTABLES
88
89# The matches.
90config IP_NF_MATCH_AH
91 tristate '"ah" match support'
92 depends on NETFILTER_ADVANCED
93 help
94 This match extension allows you to match a range of SPIs
95 inside AH header of IPSec packets.
96
97 To compile it as a module, choose M here. If unsure, say N.
98
99config IP_NF_MATCH_ECN
100 tristate '"ecn" match support'
101 depends on NETFILTER_ADVANCED
102 select NETFILTER_XT_MATCH_ECN
103 ---help---
104 This is a backwards-compat option for the user's convenience
105 (e.g. when running oldconfig). It selects
106 CONFIG_NETFILTER_XT_MATCH_ECN.
107
108config IP_NF_MATCH_RPFILTER
109 tristate '"rpfilter" reverse path filter match support'
110 depends on NETFILTER_ADVANCED && (IP_NF_MANGLE || IP_NF_RAW)
111 ---help---
112 This option allows you to match packets whose replies would
113 go out via the interface the packet came in.
114
115 To compile it as a module, choose M here. If unsure, say N.
116 The module will be called ipt_rpfilter.
117
118config IP_NF_MATCH_TTL
119 tristate '"ttl" match support'
120 depends on NETFILTER_ADVANCED
121 select NETFILTER_XT_MATCH_HL
122 ---help---
123 This is a backwards-compat option for the user's convenience
124 (e.g. when running oldconfig). It selects
125 CONFIG_NETFILTER_XT_MATCH_HL.
126
127# `filter', generic and specific targets
128config IP_NF_FILTER
129 tristate "Packet filtering"
130 default m if NETFILTER_ADVANCED=n
131 help
132 Packet filtering defines a table `filter', which has a series of
133 rules for simple packet filtering at local input, forwarding and
134 local output. See the man page for iptables(8).
135
136 To compile it as a module, choose M here. If unsure, say N.
137
138config IP_NF_TARGET_REJECT
139 tristate "REJECT target support"
140 depends on IP_NF_FILTER
141 default m if NETFILTER_ADVANCED=n
142 help
143 The REJECT target allows a filtering rule to specify that an ICMP
144 error should be issued in response to an incoming packet, rather
145 than silently being dropped.
146
147 To compile it as a module, choose M here. If unsure, say N.
148
149config IP_NF_TARGET_SYNPROXY
150 tristate "SYNPROXY target support"
151 depends on NF_CONNTRACK && NETFILTER_ADVANCED
152 select NETFILTER_SYNPROXY
153 select SYN_COOKIES
154 help
155 The SYNPROXY target allows you to intercept TCP connections and
156 establish them using syncookies before they are passed on to the
157 server. This allows to avoid conntrack and server resource usage
158 during SYN-flood attacks.
159
160 To compile it as a module, choose M here. If unsure, say N.
161
162config IP_NF_TARGET_ULOG
163 tristate "ULOG target support (obsolete)"
164 default m if NETFILTER_ADVANCED=n
165 ---help---
166
167 This option enables the old IPv4-only "ipt_ULOG" implementation
168 which has been obsoleted by the new "nfnetlink_log" code (see
169 CONFIG_NETFILTER_NETLINK_LOG).
170
171 This option adds a `ULOG' target, which allows you to create rules in
172 any iptables table. The packet is passed to a userspace logging
173 daemon using netlink multicast sockets; unlike the LOG target
174 which can only be viewed through syslog.
175
176 The appropriate userspace logging daemon (ulogd) may be obtained from
177 <http://www.netfilter.org/projects/ulogd/index.html>
178
179 To compile it as a module, choose M here. If unsure, say N.
180
181# NAT + specific targets: nf_conntrack
182config NF_NAT_IPV4
183 tristate "IPv4 NAT"
184 depends on NF_CONNTRACK_IPV4
185 default m if NETFILTER_ADVANCED=n
186 select NF_NAT
187 help
188 The IPv4 NAT option allows masquerading, port forwarding and other
189 forms of full Network Address Port Translation. It is controlled by
190 the `nat' table in iptables: see the man page for iptables(8).
191
192 To compile it as a module, choose M here. If unsure, say N.
193
194if NF_NAT_IPV4
195
196config IP_NF_TARGET_MASQUERADE
197 tristate "MASQUERADE target support"
198 default m if NETFILTER_ADVANCED=n
199 help
200 Masquerading is a special case of NAT: all outgoing connections are
201 changed to seem to come from a particular interface's address, and
202 if the interface goes down, those connections are lost. This is
203 only useful for dialup accounts with dynamic IP address (ie. your IP
204 address will be different on next dialup).
205
206 To compile it as a module, choose M here. If unsure, say N.
207
208config IP_NF_TARGET_NETMAP
209 tristate "NETMAP target support"
210 depends on NETFILTER_ADVANCED
211 select NETFILTER_XT_TARGET_NETMAP
212 ---help---
213 This is a backwards-compat option for the user's convenience
214 (e.g. when running oldconfig). It selects
215 CONFIG_NETFILTER_XT_TARGET_NETMAP.
216
217config IP_NF_TARGET_REDIRECT
218 tristate "REDIRECT target support"
219 depends on NETFILTER_ADVANCED
220 select NETFILTER_XT_TARGET_REDIRECT
221 ---help---
222 This is a backwards-compat option for the user's convenience
223 (e.g. when running oldconfig). It selects
224 CONFIG_NETFILTER_XT_TARGET_REDIRECT.
225
226endif
227
228config NF_NAT_SNMP_BASIC
229 tristate "Basic SNMP-ALG support"
230 depends on NF_CONNTRACK_SNMP && NF_NAT_IPV4
231 depends on NETFILTER_ADVANCED
232 default NF_NAT && NF_CONNTRACK_SNMP
233 ---help---
234
235 This module implements an Application Layer Gateway (ALG) for
236 SNMP payloads. In conjunction with NAT, it allows a network
237 management system to access multiple private networks with
238 conflicting addresses. It works by modifying IP addresses
239 inside SNMP payloads to match IP-layer NAT mapping.
240
241 This is the "basic" form of SNMP-ALG, as described in RFC 2962
242
243 To compile it as a module, choose M here. If unsure, say N.
244
245# If they want FTP, set to $CONFIG_IP_NF_NAT (m or y),
246# or $CONFIG_IP_NF_FTP (m or y), whichever is weaker.
247# From kconfig-language.txt:
248#
249# <expr> '&&' <expr> (6)
250#
251# (6) Returns the result of min(/expr/, /expr/).
252
253config NF_NAT_PROTO_GRE
254 tristate
255 depends on NF_NAT_IPV4 && NF_CT_PROTO_GRE
256
257config NF_NAT_PPTP
258 tristate
259 depends on NF_CONNTRACK && NF_NAT_IPV4
260 default NF_NAT_IPV4 && NF_CONNTRACK_PPTP
261 select NF_NAT_PROTO_GRE
262
263config NF_NAT_H323
264 tristate
265 depends on NF_CONNTRACK && NF_NAT_IPV4
266 default NF_NAT_IPV4 && NF_CONNTRACK_H323
267
268# mangle + specific targets
269config IP_NF_MANGLE
270 tristate "Packet mangling"
271 default m if NETFILTER_ADVANCED=n
272 help
273 This option adds a `mangle' table to iptables: see the man page for
274 iptables(8). This table is used for various packet alterations
275 which can effect how the packet is routed.
276
277 To compile it as a module, choose M here. If unsure, say N.
278
279config IP_NF_TARGET_CLUSTERIP
280 tristate "CLUSTERIP target support"
281 depends on IP_NF_MANGLE
282 depends on NF_CONNTRACK_IPV4
283 depends on NETFILTER_ADVANCED
284 select NF_CONNTRACK_MARK
285 help
286 The CLUSTERIP target allows you to build load-balancing clusters of
287 network servers without having a dedicated load-balancing
288 router/server/switch.
289
290 To compile it as a module, choose M here. If unsure, say N.
291
292config IP_NF_TARGET_ECN
293 tristate "ECN target support"
294 depends on IP_NF_MANGLE
295 depends on NETFILTER_ADVANCED
296 ---help---
297 This option adds a `ECN' target, which can be used in the iptables mangle
298 table.
299
300 You can use this target to remove the ECN bits from the IPv4 header of
301 an IP packet. This is particularly useful, if you need to work around
302 existing ECN blackholes on the internet, but don't want to disable
303 ECN support in general.
304
305 To compile it as a module, choose M here. If unsure, say N.
306
307config IP_NF_TARGET_TTL
308 tristate '"TTL" target support'
309 depends on NETFILTER_ADVANCED && IP_NF_MANGLE
310 select NETFILTER_XT_TARGET_HL
311 ---help---
312 This is a backwards-compatible option for the user's convenience
313 (e.g. when running oldconfig). It selects
314 CONFIG_NETFILTER_XT_TARGET_HL.
315
316# raw + specific targets
317config IP_NF_RAW
318 tristate 'raw table support (required for NOTRACK/TRACE)'
319 help
320 This option adds a `raw' table to iptables. This table is the very
321 first in the netfilter framework and hooks in at the PREROUTING
322 and OUTPUT chains.
323
324 If you want to compile it as a module, say M here and read
325 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
326
327# security table for MAC policy
328config IP_NF_SECURITY
329 tristate "Security table"
330 depends on SECURITY
331 depends on NETFILTER_ADVANCED
332 help
333 This option adds a `security' table to iptables, for use
334 with Mandatory Access Control (MAC) policy.
335
336 If unsure, say N.
337
338endif # IP_NF_IPTABLES
339
340# ARP tables
341config IP_NF_ARPTABLES
342 tristate "ARP tables support"
343 select NETFILTER_XTABLES
344 depends on NETFILTER_ADVANCED
345 help
346 arptables is a general, extensible packet identification framework.
347 The ARP packet filtering and mangling (manipulation)subsystems
348 use this: say Y or M here if you want to use either of those.
349
350 To compile it as a module, choose M here. If unsure, say N.
351
352if IP_NF_ARPTABLES
353
354config IP_NF_ARPFILTER
355 tristate "ARP packet filtering"
356 help
357 ARP packet filtering defines a table `filter', which has a series of
358 rules for simple ARP packet filtering at local input and
359 local output. On a bridge, you can also specify filtering rules
360 for forwarded ARP packets. See the man page for arptables(8).
361
362 To compile it as a module, choose M here. If unsure, say N.
363
364config IP_NF_ARP_MANGLE
365 tristate "ARP payload mangling"
366 help
367 Allows altering the ARP packet payload: source and destination
368 hardware and network addresses.
369
370endif # IP_NF_ARPTABLES
371
372endmenu
373