2005-09-29 Alain Ritoux <alain.ritoux@6wind.com>

    * ospfd/ospf_vty.c: forece default route LSA to be re_issued whenever
      cost is changed ( [no] ip ospf area XXX default-cost YYY)
      Support ignore-mtu option
    * ospfd/ospfd.h: define OSPF_MTU_IGNORE_DEFAULT
    * ospfd/ospf_packet.c: support ignore-mtu option
    * ospfd/ospf_interface.h: field added for skipping MTU check
    * ospfd/ospf_interface.c: fix memory leak in ospf_crypt_key_delete()
      Set mtu_ignore field to default value
    * ospfd/ospf_abr.[ch]: export ospf_abr_announce_network_to_area()
    * ospfd/ospf_ism.h: add MACRO to convert internal ISM status into SNMP
      correct values
    * ospfd/ospf_snmp.c: add sanity check on LSA type in lsdb_lookup_next()
      convert OSPFIFSTATE internal status into SNMP values
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index ceb6a20..c869d3d 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -1111,7 +1111,8 @@
     }
 
   /* Check MTU. */
-  if (ntohs (dd->mtu) > oi->ifp->mtu)
+  if ((OSPF_IF_PARAM (oi, mtu_ignore) == 0) && 
+      (ntohs (dd->mtu) > oi->ifp->mtu))
     {
       zlog_warn ("Packet[DD]: Neighbor %s MTU %u is larger than [%s]'s MTU %u",
 		 inet_ntoa (nbr->router_id), ntohs (dd->mtu),