Ethernet Bridge tables (ebtables) support

modulename: ebtables.ko

configname: CONFIG_BRIDGE_NF_EBTABLES

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Ethernet Bridge tables (ebtables) support
In linux kernel since version 2.6.12  
ebtables is a general, extensible frame/packet identification
framework. Say 'Y' or 'M' here if you want to do Ethernet
filtering/NAT/brouting on the Ethernet bridge.

source code: