[Cialug] DHCP Question

[Matthew Nuzum]

kristau wrote:
> I want to set up a second scope in the .1.x range and extend the
> subnet mask so that both ranges can "talk."  I'm pretty sure simply
> changing the subnet to 255.255.254.0 (aka /23) for both ranges will do
> the trick, making the entire address space from 0.1 through 1.254
> available.  Just looking for another couple of brains to review and
> let me know what I missed.
> 
> Can you think of any gotchas with this setup?  It is definitely a
> kludge until I get time to re-work our DHCP and most of the rest of
> our network, but I want to make sure we don't run out of address space
> in the short term.

I'm assuming no routers are involved that would get in the way, but
otherwise, supernetting, while not common, is perfectly standard.

I ran a config like this but with /22 instead so that I had 0.0 - 3.255.
I set up dhcpd to serve IP addresses in 1.x, 2.x and 3.x to various
hosts (based on mac address) and 0.0 to unknown hosts. This allowed us
to set up rules for web access through the proxy server.

Worked fine, it's been running that way for 2+ years.

-- 
Matthew Nuzum
newz2000 on freenode