In a message dated: Mon, 25 Nov 2002 10:02:11 EST
Kevin D. Clark said:
systemA 192.168.10.10
systemB 10.241.38.11
systemC 10.241.38.16
>Can you ping "A" from "C"?
I can ping from/to
systemA <-> systemB
systemB <-> systemC
but NOT systemA<->systemC.
When trying to ping between A and C, C recieves icmp requests, but does not
send replies. Though after a while (>20 secs), ping will eventually
respond.
>Does "C" have some kind of host route setup
No.
>Are *all* of the routing tables OK?
Yes.
For all intents and purposes, other than IP addresses and some
services, the two hosts are identical (B is running Apache2, C is
running apache1.x)
Additionally, this is not necessarilly restricted to just systemC.
There are other systems on the same subnet which exhibit the same
problem when pinging from systemA.
The major difference between systemB and these other systems, is that
systemB, once a day at 19:00, initiates an rsync to a system *off* the subnet.
systemB happens to mirror the RH/debian distros and kernel.org.
The only thing I can come up with is that the router these systems
all connect to age the arp cache out over time and that the rsync
lasts long enough such that it's entry is always in the arp cache of
the router when I need to connect to it.
Though even that doesn't make sense, since I've proven that systemC
does, in fact, hear the icmp requests from A, it just doesn't reply
to them.
--
Seeya,
Paul
--
It may look like I'm just sitting here doing nothing,
but I'm really actively waiting for all my problems to go away.
If you're not having fun, you're not doing it right!
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