1 files changed, 6 insertions, 0 deletions
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index 241a58f7..4338bc1a 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -309,6 +309,12 @@ ospf_rx_hook(sock *sk, int size)
     return 1;
   }
 
+  if (ifa->check_ttl && (sk->ttl < 255))
+  {
+    log(L_ERR "%s%I - TTL %d (< 255)", mesg, sk->faddr, sk->ttl);
+    return 1;
+  }
+
   if ((unsigned) size < sizeof(struct ospf_packet))
   {
     log(L_ERR "%s%I - too short (%u bytes)", mesg, sk->faddr, size);