[lug] Re: Linux boxes drop off the net? The saga continues...

D. Stimits stimits at idcomm.com
Tue Feb 13 13:49:54 MST 2001


"Gary Frerking (TurboPower)" wrote:
> 
> >> Gary - Verify that the CISCO IOS is not 11.2 or earlier (do a "show ver"
> on the Cisco router). Cisco has a known bug where it fails to respond to an
> ARP request when the SRC address is 0.0.0.0 . The  Bug Id : CSCdm49888. <<
> 
> Verified.  :o(
> 
> Our IOS is 12+.
> 
> Good thought, though.
> 
> I've updated the Linux kernels, and it doesn't seem to be helping (the ARPs
> look a lot better though).
> 
> Further testing/tracking shows that Linux isn't the only OS affected. I just
> put a FreeBSD box online, and it's doing the same thing -- and I've been
> tracking the visibility of a Solaris box, and it's doing the same thing too.
> 
> The Windows machines are about the only things staying visible to the
> outside.
> 
> As a workaround, I've got a cron job set up to ping an outside machine every
> 10 min. Works for now, but I'd obviously like to figure this out. I'll be
> doing more testing/tracing as I get the time.
> 
> -- Gary

So will you be able to tell the anti-linux guy there (the pro windows
guy) you mentioned earlier that it is a verified Cisco bug?



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