[IPLOGGER] Odd log messages Was: problem with named
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On Sat, 2 Aug 1997, Alexander Koch wrote:
> Aug 2 09:25:19 cephyr icmplogd: destination unreachable from cephyr.cid-net.de
> Aug 2 09:25:40 cephyr icmplogd: destination unreachable from cephyr.cid-net.de
>
> There're two routes going out. default is the router and the other is the
> subnet. What is wrong here? What is unreachable?
These message are beging generated becasue you have the iplogger package
installed. The iplogger package sets the interfaces into promiscuous mode
and log any unusual ICMP, TCP or UDP packes that it sees.
Destination unreachable _could_ be a sign of a problem, but if when you
check things you find that you still have connectivity then what is most
likely happening is that someone running traceroute - traceroute generates
a lot of destination unreachable packets [or is that port unreachable?]
Another possiblity is that of your machines has got the wrong subnet mask
- - if you know how to, I'd run tcpdump and log the ICMP packets and see
where cephyr is replying to, and then check that machine.
Anand.
- --
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