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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
Sam Ravnborg6a2e9b72005-07-11 21:13:56 -07009 ---help---
10 If you say Y here, then your Linux box will be able to act as an
11 Ethernet bridge, which means that the different Ethernet segments it
12 is connected to will appear as one Ethernet to the participants.
13 Several such bridges can work together to create even larger
14 networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
15 As this is a standard, Linux bridges will cooperate properly with
16 other third party bridge products.
17
18 In order to use the Ethernet bridge, you'll need the bridge
19 configuration tools; see <file:Documentation/networking/bridge.txt>
20 for location. Please read the Bridge mini-HOWTO for more
21 information.
22
23 If you enable iptables support along with the bridge support then you
24 turn your bridge into a bridging IP firewall.
25 iptables will then see the IP packets being bridged, so you need to
26 take this into account when setting up your firewall rules.
27 Enabling arptables support when bridging will let arptables see
28 bridged ARP traffic in the arptables FORWARD chain.
29
30 To compile this code as a module, choose M here: the module
31 will be called bridge.
32
33 If unsure, say N.
Herbert Xueb1d1642010-02-27 19:41:45 +000034
35config BRIDGE_IGMP_SNOOPING
36 bool "IGMP snooping"
David S. Miller024c3782010-02-28 00:51:42 -080037 depends on BRIDGE
Randy Dunlap1cd4efd2010-03-03 01:23:22 -080038 depends on INET
Herbert Xueb1d1642010-02-27 19:41:45 +000039 default y
40 ---help---
41 If you say Y here, then the Ethernet bridge will be able selectively
42 forward multicast traffic based on IGMP traffic received from each
43 port.
44
45 Say N to exclude this support and reduce the binary size.
46
47 If unsure, say Y.