On Tue, Dec 03, 2002 at 05:22:25PM +0000, Eddie Chen wrote: > Can this ordering be a problem with the CIP??? Because I am getting ICMP > type:03 and code:0D on that datagram - the "last-datagram" being sent > first. ---end quoted text---
Do you have a sniffer trace of this as well? It would be interesting to
look at but as far as the CIP is concerned (guessing you are using CLAW)
we are a totally passthru device. Each datagram is an individually
routable entity and so we don't spend time worrying about the
whole. As long as we know the right direction to send the packet, we
send it directly there. Otherwise, we pass it up to IOS to handle.
A sniffer trace (compared with the tcpdump) should also confirm this
passthru functionality (aka garbage in, garbage out). The ICMP message
to me suggests a routing issue, link failure, wrong IP address on the
subnet, etc.
ICMP Type 03 = Destination Unreachable
Code 0D = ? Should be 0-5 ?
From RFC 792:
Code
0 = net unreachable;
1 = host unreachable;
2 = protocol unreachable;
3 = port unreachable;
4 = fragmentation needed and DF set;
5 = source route failed.
Please feel free to forward me any more information you can gather and
we'll see if we see anything.
-Jere
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| Jere Julian, RHCE, CCNA Cisco Systems, Inc. ITD - IBM Sustaining |
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