|  | # | 
|  | # 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.txt> | 
|  | 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. |