| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # 802.1d Ethernet Bridging |
| # |
| |
| config BRIDGE |
| tristate "802.1d Ethernet Bridging" |
| select LLC |
| select STP |
| depends on IPV6 || IPV6=n |
| ---help--- |
| If you say Y here, then your Linux box will be able to act as an |
| Ethernet bridge, which means that the different Ethernet segments it |
| is connected to will appear as one Ethernet to the participants. |
| Several such bridges can work together to create even larger |
| networks of Ethernets using the IEEE 802.1 spanning tree algorithm. |
| As this is a standard, Linux bridges will cooperate properly with |
| other third party bridge products. |
| |
| In order to use the Ethernet bridge, you'll need the bridge |
| configuration tools; see <file:Documentation/networking/bridge.rst> |
| for location. Please read the Bridge mini-HOWTO for more |
| information. |
| |
| If you enable iptables support along with the bridge support then you |
| turn your bridge into a bridging IP firewall. |
| iptables will then see the IP packets being bridged, so you need to |
| take this into account when setting up your firewall rules. |
| Enabling arptables support when bridging will let arptables see |
| bridged ARP traffic in the arptables FORWARD chain. |
| |
| To compile this code as a module, choose M here: the module |
| will be called bridge. |
| |
| If unsure, say N. |
| |
| config BRIDGE_IGMP_SNOOPING |
| bool "IGMP/MLD snooping" |
| depends on BRIDGE |
| depends on INET |
| default y |
| ---help--- |
| If you say Y here, then the Ethernet bridge will be able selectively |
| forward multicast traffic based on IGMP/MLD traffic received from |
| each port. |
| |
| Say N to exclude this support and reduce the binary size. |
| |
| If unsure, say Y. |
| |
| config BRIDGE_VLAN_FILTERING |
| bool "VLAN filtering" |
| depends on BRIDGE |
| depends on VLAN_8021Q |
| default n |
| ---help--- |
| If you say Y here, then the Ethernet bridge will be able selectively |
| receive and forward traffic based on VLAN information in the packet |
| any VLAN information configured on the bridge port or bridge device. |
| |
| Say N to exclude this support and reduce the binary size. |
| |
| If unsure, say Y. |
| |
| config BRIDGE_MRP |
| bool "MRP protocol" |
| depends on BRIDGE |
| default n |
| help |
| If you say Y here, then the Ethernet bridge will be able to run MRP |
| protocol to detect loops |
| |
| Say N to exclude this support and reduce the binary size. |
| |
| If unsure, say N. |