s->ext_host_addr.as_u32 = ip->src_address.as_u32;
s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;