[rescue] [offtopic] Cisco 2501 and "subnet mask bug"?

Larry Snyder larrys at lexis-nexis.com
Sat May 4 10:40:08 CDT 2002


Is there an 'ip classless' in the config?  Sounds like it's missing.
-ls-


Patrick Giagnocavo <patrick at zill.net> wrote:
> I have a weird situation where I borrowed a 2501 for a month from
> someone and put it into service on a T1 line.
> 
> With it are 32 IPs.
> 
> The weird part is that (apparently) no one not on the same subnet can
> reach any of the machines IF the first part of the IP address starts
> with the same number.
> 
> That is, if I had 32 IPs on 172.16.32.xxx no one from 172.*.*.* would
> get through.  All other IP addresses work however.
> 
> Is anyone familiar with this bug?  I have found Cisco's site tough to
> navigate, and then, just when you think you have found the problem,
> the link is password protected.
> 
> Cordially
> 
> Patrick Giagnocavo
> patrick at zill.net
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue



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