[TriLUG] Westell DSL Verizon model gives dhcp address I don't want

Aaron S. Joyner aaron at joyner.ws
Mon Nov 7 16:53:59 EST 2005


Joseph Mack NA3T wrote:

> I just couldn't imagine moving my home network: network, firewall, 
> named settings - it would have taken me a week to recover and get it 
> working again.

Changing the IP range of any given network is always fraught with little 
problems you didn't think of (that one cron job which pings by IP, or 
the dns checks in your monitoring setup that checks to see the correct 
IP is returned), but generally speaking, it shouldn't be something 
that's unthinkable.  I would suggest that for academic reasons, you 
might want to investigate ways to make your network generally more 
flexible (DHCP which feeds dynamic dns, ensuring network shares, etc use 
names and not numbers, documentation of exceptions, etc), so that if 
something you couldn't easy get around necessitated you change the IP 
addresses and configs of every machine on your network, that it wouldn't 
be beyond reason.

Granted, it's just a home network, and it's unlikely you'd ever really 
have to renumber (possible reasons include wanting to establish a tunnel 
with a larger network, ala an office network, which used the same 
address space you use), but it's a good academic / educational persuit 
for a rainy day.

Aaron S. Joyner



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