seeking static IP at home and dynamic on the road

SaintDanBert · 01-26-2009, 01:05 PM

I have a laptop running ubuntu hardy (8.04). When I'm at home, I want to run a static IP address. When I'm walkabout, everything uses DHCP so I want to do that. Also, some of the on-the-road connections are wired instead of wireless.

Q1. How do I config for static in a way that permits
dynamic when I'm traveling?

Q2. What do I use to manage the "network profile" -- use these settings here and those over there -- once I answer Q1 and get the settings in the first place?

Q3. How do I set static name server values that do not get klobbered by DHCP?

~~~ Dan 0;-D

pljvaldez · 01-26-2009, 01:12 PM

I solved this problem by using "static" dhcp at home. Basically, my router (a WRT54G w/ Sveasoft Alchemy firmware) lets me use DHCP to assign specific addresses based on the MAC address. So at home, in the specific box I enter

Code:

192.168.XXX.XXX  XX:XX:XX:XX:XX:XX  hostname

Then I can just leave my laptop on DHCP all the time, but when I'm at home I get the predefined address and DNS hostname.

SaintDanBert · 01-26-2009, 06:41 PM

I have both a linksys and a netgear wifi box.
I'm dashed if I can find where to do this
setting. Please offer more details.

Also, is there any convention for setting a domain
name on an RFC private network? My ISP has its domain name, but I'm not part of its net and cannot hijack some names.
If I have hosts named FRED, WILMA, BARNEY, and BETTY, do I simply ignore the domain part or is their a standard practice like localhost.localdomain or similar?
Can I use some nonsense like "dummy.lan" or whatever?
Does this matter?

~~~ 0;-/

pljvaldez · 01-26-2009, 06:48 PM

http://www.dvrplayground.com/article...f-Both-Worlds/

What model routers are you using? Some routers don't have the static DHCP by default and require a third party firmware.

As for the domain and hostname stuff, I just picked a domain name like "dummy.lan". Seeing your names, you could use something like "bedrock.lan" or just "bedrock". It doesn't matter. Your router should be able to deal with both on the local net.

As for Q3, do you mean you want to access your home network from on the road? If so, you need to look into dynamic DNS. Many routers with 3rd party firmware are setup to use this service.