// Router Advert server mode
static uint64_t send_router_advert(struct interface *iface, const struct in6_addr *from)
{
- int mtu = odhcpd_get_interface_mtu(iface->ifname);
- if (mtu < 0)
- mtu = 1500;
+ int mtu = odhcpd_get_interface_config(iface->ifname, "mtu");
+ int hlim = odhcpd_get_interface_config(iface->ifname, "hop_limit");
+
+ if (mtu < 1280)
+ mtu = 1280;
struct {
struct nd_router_advert h;
.mtu = {ND_OPT_MTU, 1, 0, htonl(mtu)},
};
+ if (hlim > 0)
+ adv.h.nd_ra_curhoplimit = hlim;
+
if (iface->dhcpv6)
adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;