1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # 802.1d Ethernet Bridging 2 # 802.1d Ethernet Bridging
4 # 3 #
5 4
6 config BRIDGE 5 config BRIDGE
7 tristate "802.1d Ethernet Bridging" 6 tristate "802.1d Ethernet Bridging"
8 select LLC 7 select LLC
9 select STP 8 select STP
10 depends on IPV6 || IPV6=n !! 9 ---help---
11 help <<
12 If you say Y here, then your Linux b 10 If you say Y here, then your Linux box will be able to act as an
13 Ethernet bridge, which means that th 11 Ethernet bridge, which means that the different Ethernet segments it
14 is connected to will appear as one E 12 is connected to will appear as one Ethernet to the participants.
15 Several such bridges can work togeth 13 Several such bridges can work together to create even larger
16 networks of Ethernets using the IEEE 14 networks of Ethernets using the IEEE 802.1 spanning tree algorithm.
17 As this is a standard, Linux bridges 15 As this is a standard, Linux bridges will cooperate properly with
18 other third party bridge products. 16 other third party bridge products.
19 17
20 In order to use the Ethernet bridge, 18 In order to use the Ethernet bridge, you'll need the bridge
21 configuration tools; see <file:Docum !! 19 configuration tools; see <file:Documentation/networking/bridge.txt>
22 for location. Please read the Bridge 20 for location. Please read the Bridge mini-HOWTO for more
23 information. 21 information.
24 22
25 If you enable iptables support along 23 If you enable iptables support along with the bridge support then you
26 turn your bridge into a bridging IP 24 turn your bridge into a bridging IP firewall.
27 iptables will then see the IP packet 25 iptables will then see the IP packets being bridged, so you need to
28 take this into account when setting 26 take this into account when setting up your firewall rules.
29 Enabling arptables support when brid 27 Enabling arptables support when bridging will let arptables see
30 bridged ARP traffic in the arptables 28 bridged ARP traffic in the arptables FORWARD chain.
31 29
32 To compile this code as a module, ch 30 To compile this code as a module, choose M here: the module
33 will be called bridge. 31 will be called bridge.
34 <<
35 If unsure, say N. <<
36 <<
37 config BRIDGE_IGMP_SNOOPING <<
38 bool "IGMP/MLD snooping" <<
39 depends on BRIDGE <<
40 depends on INET <<
41 default y <<
42 help <<
43 If you say Y here, then the Ethernet <<
44 forward multicast traffic based on I <<
45 each port. <<
46 <<
47 Say N to exclude this support and re <<
48 <<
49 If unsure, say Y. <<
50 <<
51 config BRIDGE_VLAN_FILTERING <<
52 bool "VLAN filtering" <<
53 depends on BRIDGE <<
54 depends on VLAN_8021Q <<
55 default n <<
56 help <<
57 If you say Y here, then the Ethernet <<
58 receive and forward traffic based on <<
59 any VLAN information configured on t <<
60 <<
61 Say N to exclude this support and re <<
62 <<
63 If unsure, say Y. <<
64 <<
65 config BRIDGE_MRP <<
66 bool "MRP protocol" <<
67 depends on BRIDGE <<
68 default n <<
69 help <<
70 If you say Y here, then the Ethernet <<
71 protocol to detect loops <<
72 <<
73 Say N to exclude this support and re <<
74 <<
75 If unsure, say N. <<
76 <<
77 config BRIDGE_CFM <<
78 bool "CFM protocol" <<
79 depends on BRIDGE <<
80 help <<
81 If you say Y here, then the Ethernet <<
82 protocol according to 802.1Q section <<
83 <<
84 Say N to exclude this support and re <<
85 32
86 If unsure, say N. 33 If unsure, say N.
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