router: don't send O flag when no dhcpv6 is enabled

[project/odhcpd.git] / src / router.c

diff --git a/src/router.c b/src/router.c
index 5abf1e6..945151e 100644 (file)
--- a/src/router.c
+++ b/src/router.c
@@ -219,7 +219,10 @@ static void send_router_advert(struct uloop_timeout *event)
                .lladdr = {ND_OPT_SOURCE_LINKADDR, 1, {0}},
                .mtu = {ND_OPT_MTU, 1, 0, htonl(mtu)},
        };
-       adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;
+
+       if (iface->dhcpv6)
+               adv.h.nd_ra_flags_reserved = ND_RA_FLAG_OTHER;
+
        if (iface->managed >= RELAYD_MANAGED_MFLAG)
                adv.h.nd_ra_flags_reserved |= ND_RA_FLAG_MANAGED;