[Wylug-help] Odd ping output

James Holden wylug at jamesholden.net
Wed Jul 28 18:20:26 BST 2004


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Yes, that's what appears to be going on. It's an ICMP redirect. I
suspect that the XP machine has assumed a netmask of 255.255.255.255,
which is AFAIK a known bug. Either that or whoever set the XP machine up
has just got carried away typing 255's in.

James



Jim Jackson wrote:
| what are the netmasks on the 2 systems involved? I suspect that
| there is a mismatch, and a mismatch with what the router has as a netmask.
|
| The one with the more restrictive netmask, with not see the other on the
| same network, and so will send the packet to the router who will scratch
| its head as to why it should be routing this packet, and send a redirect
| back to sender to say hewy why don't you send direct!
|
| Jim
|
|
| On Tue, 27 Jul 2004, Gary Stainburn wrote:
|
|
|>Hi folks.
|>
|>Can anyone explain why I get the following when running ping.
|>
|>donlin is a RH7.3 system
|>dadminc is WinXP
|>10.2.1.1 is a Cisco router
|>
|>[gary at donlin gary]$ ping dadminc
|>PING dadminc.ringways.co.uk (10.2.2.14) from 10.2.1.2 : 56(84) bytes
of data.
|>>From routerd.ringways.co.uk (10.2.1.1): icmp_seq=1 Redirect Network(New
|>nexthop: dadminc.ringways.co.uk (10.2.2.14))
|>64 bytes from dadminc.ringways.co.uk (10.2.2.14): icmp_seq=1 ttl=128
time=2.22
|>ms
|>>From routerd.ringways.co.uk (10.2.1.1): icmp_seq=2 Redirect Network(New
|>nexthop: dadminc.ringways.co.uk (10.2.2.14))
|>64 bytes from dadminc.ringways.co.uk (10.2.2.14): icmp_seq=2 ttl=128
time=2.56
|>ms

- --
James Andrew Holden, Leeds, UK    (james at jamesholden dot net)
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