projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 6a2e9b73 SR |
2 | # |
| 3 | # 802.1d Ethernet Bridging | |
| 4 | # | |
| 5 | ||
| 6 | config BRIDGE | |
| 7 | tristate "802.1d Ethernet Bridging" | |
| cf0f02d0 | 8 | select LLC |
| 7c85fbf0 | 9 | select STP |
| dcbcdf22 | 10 | depends on IPV6 || IPV6=n |
| a7f7f624 | 11 | help |
| 6a2e9b73 SR |
12 | If you say Y here, then your Linux box will be able to act as an |
| 13 | Ethernet bridge, which means that the different Ethernet segments it | |
| 14 | is connected to will appear as one Ethernet to the participants. | |
| 15 | Several such bridges can work together to create even larger | |
| 16 | networks of Ethernets using the IEEE 802.1 spanning tree algorithm. | |
| 17 | As this is a standard, Linux bridges will cooperate properly with | |
| 18 | other third party bridge products. | |
| 19 | ||
| 20 | In order to use the Ethernet bridge, you'll need the bridge | |
| c03e2fa7 | 21 | configuration tools; see <file:Documentation/networking/bridge.rst> |
| 6a2e9b73 SR |
22 | for location. Please read the Bridge mini-HOWTO for more |
| 23 | information. | |
| 24 | ||
| 25 | If you enable iptables support along with the bridge support then you | |
| 26 | turn your bridge into a bridging IP firewall. | |
| 27 | iptables will then see the IP packets being bridged, so you need to | |
| 28 | take this into account when setting up your firewall rules. | |
| 29 | Enabling arptables support when bridging will let arptables see | |
| 30 | bridged ARP traffic in the arptables FORWARD chain. | |
| 31 | ||
| 32 | To compile this code as a module, choose M here: the module | |
| 33 | will be called bridge. | |
| 34 | ||
| 35 | If unsure, say N. | |
| eb1d1641 HX |
36 | |
| 37 | config BRIDGE_IGMP_SNOOPING | |
| 08b202b6 | 38 | bool "IGMP/MLD snooping" |
| 024c378f | 39 | depends on BRIDGE |
| 1cd4efdd | 40 | depends on INET |
| eb1d1641 | 41 | default y |
| a7f7f624 | 42 | help |
| eb1d1641 | 43 | If you say Y here, then the Ethernet bridge will be able selectively |
| 08b202b6 YH |
44 | forward multicast traffic based on IGMP/MLD traffic received from |
| 45 | each port. | |
| eb1d1641 HX |
46 | |
| 47 | Say N to exclude this support and reduce the binary size. | |
| 48 | ||
| 49 | If unsure, say Y. | |
| 243a2e63 VY |
50 | |
| 51 | config BRIDGE_VLAN_FILTERING | |
| 52 | bool "VLAN filtering" | |
| 53 | depends on BRIDGE | |
| 54 | depends on VLAN_8021Q | |
| 55 | default n | |
| a7f7f624 | 56 | help |
| 243a2e63 VY |
57 | If you say Y here, then the Ethernet bridge will be able selectively |
| 58 | receive and forward traffic based on VLAN information in the packet | |
| 59 | any VLAN information configured on the bridge port or bridge device. | |
| 60 | ||
| 61 | Say N to exclude this support and reduce the binary size. | |
| 62 | ||
| 63 | If unsure, say Y. | |
| 2cc974f8 HV |
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 bridge will be able to run MRP | |
| 71 | protocol to detect loops | |
| 72 | ||
| 73 | Say N to exclude this support and reduce the binary size. | |
| 74 | ||
| 75 | If unsure, say N. | |
| f323aa54 HB |
76 | |
| 77 | config BRIDGE_CFM | |
| 78 | bool "CFM protocol" | |
| 79 | depends on BRIDGE | |
| 80 | help | |
| 81 | If you say Y here, then the Ethernet bridge will be able to run CFM | |
| 82 | protocol according to 802.1Q section 12.14 | |
| 83 | ||
| 84 | Say N to exclude this support and reduce the binary size. | |
| 85 | ||
| 86 | If unsure, say N. |