pf_change_a6
static void pf_change_a6(struct pf_addr *, u_int16_t *,
pf_change_a6(pd->src, &pd->hdr.icmp6.icmp6_cksum,
pf_change_a6(pd->dst, &pd->hdr.icmp6.icmp6_cksum,
pf_change_a6(saddr,
pf_change_a6(daddr,