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Sam Ravnborg6a2e9b72005-07-11 21:13:56 -07001#
2# 802.1d Ethernet Bridging
3#
4
5config BRIDGE
6 tristate "802.1d Ethernet Bridging"
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -08007 select LLC
Patrick McHardy7c85fbf2008-07-05 21:25:56 -07008 select STP
Randy Dunlapdcbcdf22011-03-10 13:45:57 -08009 depends on IPV6 || IPV6=n
Sam Ravnborg6a2e9b72005-07-11 21:13:56 -070010 ---help---
11 If you say Y here, then your Linux box will be able to act as an
12 Ethernet bridge, which means that the different Ethernet segments it
13 is connected to will appear as one Ethernet to the participants.
14 Several such bridges can work together to create even larger
15 networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
16 As this is a standard, Linux bridges will cooperate properly with
17 other third party bridge products.
18
19 In order to use the Ethernet bridge, you'll need the bridge
20 configuration tools; see <file:Documentation/networking/bridge.txt>
21 for location. Please read the Bridge mini-HOWTO for more
22 information.
23
24 If you enable iptables support along with the bridge support then you
25 turn your bridge into a bridging IP firewall.
26 iptables will then see the IP packets being bridged, so you need to
27 take this into account when setting up your firewall rules.
28 Enabling arptables support when bridging will let arptables see
29 bridged ARP traffic in the arptables FORWARD chain.
30
31 To compile this code as a module, choose M here: the module
32 will be called bridge.
33
34 If unsure, say N.
Herbert Xueb1d1642010-02-27 19:41:45 +000035
36config BRIDGE_IGMP_SNOOPING
YOSHIFUJI Hideaki08b202b2010-04-23 01:54:22 +090037 bool "IGMP/MLD snooping"
David S. Miller024c3782010-02-28 00:51:42 -080038 depends on BRIDGE
Randy Dunlap1cd4efd2010-03-03 01:23:22 -080039 depends on INET
Herbert Xueb1d1642010-02-27 19:41:45 +000040 default y
41 ---help---
42 If you say Y here, then the Ethernet bridge will be able selectively
YOSHIFUJI Hideaki08b202b2010-04-23 01:54:22 +090043 forward multicast traffic based on IGMP/MLD traffic received from
44 each port.
Herbert Xueb1d1642010-02-27 19:41:45 +000045
46 Say N to exclude this support and reduce the binary size.
47
48 If unsure, say Y.