Bridged IP/ARP packets filtering

modulename: br_netfilter.ko

configname: CONFIG_BRIDGE_NETFILTER

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering (replaces ipchains)
└─>Bridged IP/ARP packets filtering
In linux kernel since version 2.6.12  
Enabling this option will let arptables resp. iptables see bridged
ARP resp. IP traffic. If you want a bridging firewall, you probably
want this option enabled.
Enabling or disabling this option doesn't enable or disable
ebtables.

If unsure, say N.