Changing system name in network [Resolved]

Les Mikesell les at futuresource.com
Fri Aug 27 22:22:45 UTC 2004


On Fri, 2004-08-27 at 17:04, Gordon Keehn wrote:
> >
> >It sounds like the router had the name cached, and had to be reset to
> >drop the old name and add the new.
> >
> >  
> >
>     Ah, therein lies the problem.  Since I specified the new name in 
> /etc/fstab, even if the router had the old name cached I wouldn't have 
> expected anyone to retrieve it.  Still, I'm not going to lose any slepp 
> over it.

Are you sure it was really a name issue?  Routers, unlike most
other devices, typically cache arp entries that tie IP addresses
to MAC ethernet addresses for up to 20 minutes.  If you
change an existing IP number so it now goes to a different
ethernet card you can connect immediately within the local
subnet but you have to wait for the arp cache timeout
before you can connect over a router (or until you clear
it's cache).

---
  Les Mikesell
   les at futuresource.com






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