session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
u16 rmt_port, u8 proto, u32 thread_index,
session_lookup_connection_wt4 (u32 fib_index, ip4_address_t * lcl,
ip4_address_t * rmt, u16 lcl_port,
u16 rmt_port, u8 proto, u32 thread_index,