toeplitz_piecemeal_addr
toeplitz_piecemeal_addr(daddr->v4.s_addr) ^
toeplitz_piecemeal_addr(naddr->v4.s_addr);
hash_base = toeplitz_piecemeal_addr(sin->sin_addr.s_addr) ^
toeplitz_piecemeal_addr(inp->inp_laddr.s_addr) ^