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Re: Forcing specific IP address with DHCP



On 04/17/2008 09:31 AM, Celejar wrote:
I find myself in a bizarre networking predicament.  I need to have
a server (henceforth 'edith') accept incoming connections (e.g. ssh)
from the Internet.  edith is behind a home gateway / router / switch
( Trendware / Trendnet TEW-452BRP [0] - henceforth 'gwen').  gwen will
forward specific ports to specific private, internal IP addresses, but
bizarrely, it seems to provide no facility for ensuring that a specific
host will be assigned, via DHCP, a particular IP address.

Not such a bizarre thing - I do this for several servers running behind a Debian router/firewall server for my home connection. I don't know about the particular router you are using, but if it does not allow MAC->IP mapping, I think assuming that it has no dynamic DHCP client is fair :P

What would you do in this situation (besides getting a different router
or using a general purpose computer as one)?

Stick a Debian box behind your ISP modem and set it up as your gateway and DHCP server - then run ddclient with a service like DynDNS (apt-cache show ddclient) - I do this at home, at work, on my laptop - I can always get to the machines I might need by hostname - who cares what the IP is :)

--
Kind Regards,
Michael Shuler


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