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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
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_SOCKET_IPV4
29 tristate "IPv4 socket lookup support"
30 help
31 This option enables the IPv4 socket lookup infrastructure. This is
32 is required by the iptables socket match.
33
34if NF_TABLES
35
36config NF_TABLES_IPV4
37 bool "IPv4 nf_tables support"
38 help
39 This option enables the IPv4 support for nf_tables.
40
41if NF_TABLES_IPV4
42
43config NFT_CHAIN_ROUTE_IPV4
44 tristate "IPv4 nf_tables route chain support"
45 help
46 This option enables the "route" chain for IPv4 in nf_tables. This
47 chain type is used to force packet re-routing after mangling header
48 fields such as the source, destination, type of service and
49 the packet mark.
50
51config NFT_REJECT_IPV4
52 select NF_REJECT_IPV4
53 default NFT_REJECT
54 tristate
55
56config NFT_DUP_IPV4
57 tristate "IPv4 nf_tables packet duplication support"
58 depends on !NF_CONNTRACK || NF_CONNTRACK
59 select NF_DUP_IPV4
60 help
61 This module enables IPv4 packet duplication support for nf_tables.
62
63config NFT_FIB_IPV4
64 select NFT_FIB
65 tristate "nf_tables fib / ip route lookup support"
66 help
67 This module enables IPv4 FIB lookups, e.g. for reverse path filtering.
68 It also allows query of the FIB for the route type, e.g. local, unicast,
69 multicast or blackhole.
70
71endif # NF_TABLES_IPV4
72
73config NF_TABLES_ARP
74 bool "ARP nf_tables support"
75 select NETFILTER_FAMILY_ARP
76 help
77 This option enables the ARP support for nf_tables.
78
79endif # NF_TABLES
80
81config NF_FLOW_TABLE_IPV4
82 tristate "Netfilter flow table IPv4 module"
83 depends on NF_FLOW_TABLE
84 help
85 This option adds the flow table IPv4 support.
86
87 To compile it as a module, choose M here.
88
89config NF_DUP_IPV4
90 tristate "Netfilter IPv4 packet duplication to alternate destination"
91 depends on !NF_CONNTRACK || NF_CONNTRACK
92 help
93 This option enables the nf_dup_ipv4 core, which duplicates an IPv4
94 packet to be rerouted to another destination.
95
96config NF_LOG_ARP
97 tristate "ARP packet logging"
98 default m if NETFILTER_ADVANCED=n
99 select NF_LOG_COMMON
100
101config NF_LOG_IPV4
102 tristate "IPv4 packet logging"
103 default m if NETFILTER_ADVANCED=n
104 select NF_LOG_COMMON
105
106config NF_REJECT_IPV4
107 tristate "IPv4 packet rejection"
108 default m if NETFILTER_ADVANCED=n
109
110config NF_NAT_IPV4
111 tristate "IPv4 NAT"
112 depends on NF_CONNTRACK_IPV4
113 default m if NETFILTER_ADVANCED=n
114 select NF_NAT
115 help
116 The IPv4 NAT option allows masquerading, port forwarding and other
117 forms of full Network Address Port Translation. This can be
118 controlled by iptables or nft.
119
120if NF_NAT_IPV4
121
122config NFT_CHAIN_NAT_IPV4
123 depends on NF_TABLES_IPV4
124 tristate "IPv4 nf_tables nat chain support"
125 help
126 This option enables the "nat" chain for IPv4 in nf_tables. This
127 chain type is used to perform Network Address Translation (NAT)
128 packet transformations such as the source, destination address and
129 source and destination ports.
130
131config NF_NAT_MASQUERADE_IPV4
132 tristate "IPv4 masquerade support"
133 help
134 This is the kernel functionality to provide NAT in the masquerade
135 flavour (automatic source address selection).
136
137config NFT_MASQ_IPV4
138 tristate "IPv4 masquerading support for nf_tables"
139 depends on NF_TABLES_IPV4
140 depends on NFT_MASQ
141 select NF_NAT_MASQUERADE_IPV4
142 help
143 This is the expression that provides IPv4 masquerading support for
144 nf_tables.
145
146config NFT_REDIR_IPV4
147 tristate "IPv4 redirect support for nf_tables"
148 depends on NF_TABLES_IPV4
149 depends on NFT_REDIR
150 select NF_NAT_REDIRECT
151 help
152 This is the expression that provides IPv4 redirect support for
153 nf_tables.
154
155config NF_NAT_SNMP_BASIC
156 tristate "Basic SNMP-ALG support"
157 depends on NF_CONNTRACK_SNMP
158 depends on NETFILTER_ADVANCED
159 default NF_NAT && NF_CONNTRACK_SNMP
160 select ASN1
161 ---help---
162
163 This module implements an Application Layer Gateway (ALG) for
164 SNMP payloads. In conjunction with NAT, it allows a network
165 management system to access multiple private networks with
166 conflicting addresses. It works by modifying IP addresses
167 inside SNMP payloads to match IP-layer NAT mapping.
168
169 This is the "basic" form of SNMP-ALG, as described in RFC 2962
170
171 To compile it as a module, choose M here. If unsure, say N.
172
173config NF_NAT_PROTO_GRE
174 tristate
175 depends on NF_CT_PROTO_GRE
176
177config NF_NAT_PPTP
178 tristate
179 depends on NF_CONNTRACK
180 default NF_CONNTRACK_PPTP
181 select NF_NAT_PROTO_GRE
182
183config NF_NAT_H323
184 tristate
185 depends on NF_CONNTRACK
186 default NF_CONNTRACK_H323
187
188endif # NF_NAT_IPV4
189
190config IP_NF_IPTABLES
191 tristate "IP tables support (required for filtering/masq/NAT)"
192 default m if NETFILTER_ADVANCED=n
193 select NETFILTER_XTABLES
194 help
195 iptables is a general, extensible packet identification framework.
196 The packet filtering and full NAT (masquerading, port forwarding,
197 etc) subsystems now use this: say `Y' or `M' here if you want to use
198 either of those.
199
200 To compile it as a module, choose M here. If unsure, say N.
201
202if IP_NF_IPTABLES
203
204# The matches.
205config IP_NF_MATCH_AH
206 tristate '"ah" match support'
207 depends on NETFILTER_ADVANCED
208 help
209 This match extension allows you to match a range of SPIs
210 inside AH header of IPSec packets.
211
212 To compile it as a module, choose M here. If unsure, say N.
213
214config IP_NF_MATCH_ECN
215 tristate '"ecn" match support'
216 depends on NETFILTER_ADVANCED
217 select NETFILTER_XT_MATCH_ECN
218 ---help---
219 This is a backwards-compat option for the user's convenience
220 (e.g. when running oldconfig). It selects
221 CONFIG_NETFILTER_XT_MATCH_ECN.
222
223config IP_NF_MATCH_RPFILTER
224 tristate '"rpfilter" reverse path filter match support'
225 depends on NETFILTER_ADVANCED
226 depends on IP_NF_MANGLE || IP_NF_RAW
227 ---help---
228 This option allows you to match packets whose replies would
229 go out via the interface the packet came in.
230
231 To compile it as a module, choose M here. If unsure, say N.
232 The module will be called ipt_rpfilter.
233
234config IP_NF_MATCH_TTL
235 tristate '"ttl" match support'
236 depends on NETFILTER_ADVANCED
237 select NETFILTER_XT_MATCH_HL
238 ---help---
239 This is a backwards-compat option for the user's convenience
240 (e.g. when running oldconfig). It selects
241 CONFIG_NETFILTER_XT_MATCH_HL.
242
243# `filter', generic and specific targets
244config IP_NF_FILTER
245 tristate "Packet filtering"
246 default m if NETFILTER_ADVANCED=n
247 help
248 Packet filtering defines a table `filter', which has a series of
249 rules for simple packet filtering at local input, forwarding and
250 local output. See the man page for iptables(8).
251
252 To compile it as a module, choose M here. If unsure, say N.
253
254config IP_NF_TARGET_REJECT
255 tristate "REJECT target support"
256 depends on IP_NF_FILTER
257 select NF_REJECT_IPV4
258 default m if NETFILTER_ADVANCED=n
259 help
260 The REJECT target allows a filtering rule to specify that an ICMP
261 error should be issued in response to an incoming packet, rather
262 than silently being dropped.
263
264 To compile it as a module, choose M here. If unsure, say N.
265
266config IP_NF_TARGET_SYNPROXY
267 tristate "SYNPROXY target support"
268 depends on NF_CONNTRACK && NETFILTER_ADVANCED
269 select NETFILTER_SYNPROXY
270 select SYN_COOKIES
271 help
272 The SYNPROXY target allows you to intercept TCP connections and
273 establish them using syncookies before they are passed on to the
274 server. This allows to avoid conntrack and server resource usage
275 during SYN-flood attacks.
276
277 To compile it as a module, choose M here. If unsure, say N.
278
279# NAT + specific targets: nf_conntrack
280config IP_NF_NAT
281 tristate "iptables NAT support"
282 depends on NF_CONNTRACK_IPV4
283 default m if NETFILTER_ADVANCED=n
284 select NF_NAT
285 select NF_NAT_IPV4
286 select NETFILTER_XT_NAT
287 help
288 This enables the `nat' table in iptables. This allows masquerading,
289 port forwarding and other forms of full Network Address Port
290 Translation.
291
292 To compile it as a module, choose M here. If unsure, say N.
293
294if IP_NF_NAT
295
296config IP_NF_TARGET_MASQUERADE
297 tristate "MASQUERADE target support"
298 select NF_NAT_MASQUERADE_IPV4
299 default m if NETFILTER_ADVANCED=n
300 help
301 Masquerading is a special case of NAT: all outgoing connections are
302 changed to seem to come from a particular interface's address, and
303 if the interface goes down, those connections are lost. This is
304 only useful for dialup accounts with dynamic IP address (ie. your IP
305 address will be different on next dialup).
306
307 To compile it as a module, choose M here. If unsure, say N.
308
309config IP_NF_TARGET_NETMAP
310 tristate "NETMAP target support"
311 depends on NETFILTER_ADVANCED
312 select NETFILTER_XT_TARGET_NETMAP
313 ---help---
314 This is a backwards-compat option for the user's convenience
315 (e.g. when running oldconfig). It selects
316 CONFIG_NETFILTER_XT_TARGET_NETMAP.
317
318config IP_NF_TARGET_REDIRECT
319 tristate "REDIRECT target support"
320 depends on NETFILTER_ADVANCED
321 select NETFILTER_XT_TARGET_REDIRECT
322 ---help---
323 This is a backwards-compat option for the user's convenience
324 (e.g. when running oldconfig). It selects
325 CONFIG_NETFILTER_XT_TARGET_REDIRECT.
326
327endif # IP_NF_NAT
328
329# mangle + specific targets
330config IP_NF_MANGLE
331 tristate "Packet mangling"
332 default m if NETFILTER_ADVANCED=n
333 help
334 This option adds a `mangle' table to iptables: see the man page for
335 iptables(8). This table is used for various packet alterations
336 which can effect how the packet is routed.
337
338 To compile it as a module, choose M here. If unsure, say N.
339
340config IP_NF_TARGET_CLUSTERIP
341 tristate "CLUSTERIP target support"
342 depends on IP_NF_MANGLE
343 depends on NF_CONNTRACK_IPV4
344 depends on NETFILTER_ADVANCED
345 select NF_CONNTRACK_MARK
346 select NETFILTER_FAMILY_ARP
347 help
348 The CLUSTERIP target allows you to build load-balancing clusters of
349 network servers without having a dedicated load-balancing
350 router/server/switch.
351
352 To compile it as a module, choose M here. If unsure, say N.
353
354config IP_NF_TARGET_ECN
355 tristate "ECN target support"
356 depends on IP_NF_MANGLE
357 depends on NETFILTER_ADVANCED
358 ---help---
359 This option adds a `ECN' target, which can be used in the iptables mangle
360 table.
361
362 You can use this target to remove the ECN bits from the IPv4 header of
363 an IP packet. This is particularly useful, if you need to work around
364 existing ECN blackholes on the internet, but don't want to disable
365 ECN support in general.
366
367 To compile it as a module, choose M here. If unsure, say N.
368
369config IP_NF_TARGET_TTL
370 tristate '"TTL" target support'
371 depends on NETFILTER_ADVANCED && IP_NF_MANGLE
372 select NETFILTER_XT_TARGET_HL
373 ---help---
374 This is a backwards-compatible option for the user's convenience
375 (e.g. when running oldconfig). It selects
376 CONFIG_NETFILTER_XT_TARGET_HL.
377
378# raw + specific targets
379config IP_NF_RAW
380 tristate 'raw table support (required for NOTRACK/TRACE)'
381 help
382 This option adds a `raw' table to iptables. This table is the very
383 first in the netfilter framework and hooks in at the PREROUTING
384 and OUTPUT chains.
385
386 If you want to compile it as a module, say M here and read
387 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
388
389# security table for MAC policy
390config IP_NF_SECURITY
391 tristate "Security table"
392 depends on SECURITY
393 depends on NETFILTER_ADVANCED
394 help
395 This option adds a `security' table to iptables, for use
396 with Mandatory Access Control (MAC) policy.
397
398 If unsure, say N.
399
400endif # IP_NF_IPTABLES
401
402# ARP tables
403config IP_NF_ARPTABLES
404 tristate "ARP tables support"
405 select NETFILTER_XTABLES
406 select NETFILTER_FAMILY_ARP
407 depends on NETFILTER_ADVANCED
408 help
409 arptables is a general, extensible packet identification framework.
410 The ARP packet filtering and mangling (manipulation)subsystems
411 use this: say Y or M here if you want to use either of those.
412
413 To compile it as a module, choose M here. If unsure, say N.
414
415if IP_NF_ARPTABLES
416
417config IP_NF_ARPFILTER
418 tristate "ARP packet filtering"
419 help
420 ARP packet filtering defines a table `filter', which has a series of
421 rules for simple ARP packet filtering at local input and
422 local output. On a bridge, you can also specify filtering rules
423 for forwarded ARP packets. See the man page for arptables(8).
424
425 To compile it as a module, choose M here. If unsure, say N.
426
427config IP_NF_ARP_MANGLE
428 tristate "ARP payload mangling"
429 help
430 Allows altering the ARP packet payload: source and destination
431 hardware and network addresses.
432
433endif # IP_NF_ARPTABLES
434
435endmenu
436