nd_opts_mtu 1485 net/ipv6/ndisc.c if (ndopts.nd_opts_mtu && in6_dev->cnf.accept_ra_mtu) { nd_opts_mtu 1489 net/ipv6/ndisc.c memcpy(&n, ((u8 *)(ndopts.nd_opts_mtu+1))+2, sizeof(mtu));