EBT_LOG_IP 8 include/linux/netfilter_bridge/ebt_log.h #define EBT_LOG_MASK (EBT_LOG_IP | EBT_LOG_ARP | EBT_LOG_IP6) EBT_LOG_IP 106 net/bridge/netfilter/ebt_log.c if ((bitmask & EBT_LOG_IP) && eth_hdr(skb)->h_proto ==