1#
2# 802.1d Ethernet Bridging
3#
4
5config BRIDGE
6	tristate "802.1d Ethernet Bridging"
7	select LLC
8	select STP
9	depends on IPV6 || IPV6=n
10	---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.
35
36config BRIDGE_IGMP_SNOOPING
37	bool "IGMP/MLD snooping"
38	depends on BRIDGE
39	depends on INET
40	default y
41	---help---
42	  If you say Y here, then the Ethernet bridge will be able selectively
43	  forward multicast traffic based on IGMP/MLD traffic received from
44	  each port.
45
46	  Say N to exclude this support and reduce the binary size.
47
48	  If unsure, say Y.
49