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-rw-r--r--netlink.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/netlink.c b/netlink.c
index 2c9e71f..c082991 100644
--- a/netlink.c
+++ b/netlink.c
@@ -600,13 +600,22 @@ int nl_route_dup(int s_src, unsigned int ifi_src,
if (discard)
break;
- } else if (rta->rta_type == RTA_PREFSRC) {
- /* Host routes might include a preferred source
- * address, which must be one of the host's
- * addresses. However, with -a pasta will use a
- * different namespace address, making such a
- * route invalid in the namespace. Strip off
- * RTA_PREFSRC attributes to avoid that. */
+ } else if (rta->rta_type == RTA_PREFSRC ||
+ rta->rta_type == RTA_NH_ID) {
+ /* Strip RTA_PREFSRC attributes: host routes
+ * might include a preferred source address,
+ * which must be one of the host's addresses.
+ * However, with -a, pasta will use a different
+ * namespace address, making such a route
+ * invalid in the namespace.
+ *
+ * Strip RTA_NH_ID attributes: host routes set
+ * up via routing protocols (e.g. OSPF) might
+ * contain a nexthop ID (and not nexthop
+ * objects, which are taken care of in the
+ * RTA_MULTIPATH case above) that's not valid
+ * in the target namespace.
+ */
rta->rta_type = RTA_UNSPEC;
}
}