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-rw-r--r--net/ipv6/route.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0f30ee3d94e..f587a0e6cf3 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1403,6 +1403,9 @@ static struct rt6_info *rt6_add_route_info(struct in6_addr *prefix, int prefixle
ipv6_addr_copy(&rtmsg.rtmsg_gateway, gwaddr);
rtmsg.rtmsg_metric = 1024;
rtmsg.rtmsg_flags = RTF_GATEWAY | RTF_ADDRCONF | RTF_ROUTEINFO | RTF_UP | RTF_PREF(pref);
+ /* We should treat it as a default route if prefix length is 0. */
+ if (!prefixlen)
+ rtmsg.rtmsg_flags |= RTF_DEFAULT;
rtmsg.rtmsg_ifindex = ifindex;
ip6_route_add(&rtmsg, NULL, NULL, NULL);