[gentoo-user] Be careful when using dhcp with a LiveCD

[Grant]

I just spent a few hours trying to fix a problem where my Gentoo
router would only dhcp the ip address of the cable modem instead of
the proper IP address from the WAN.  I ended up enabling USE=vram and
it worked again.

# equery uses dhcpcd
 + + vram : Disable DUID due to volatile media, such as a LiveCD

I had just previously booted to a Damn Small Linux LiveCD when the
trouble started so I'm thinking the CD tried to dhcp from my cable
internet provider without a DUID which caused the provider to change
something which means that I need to disable the DUID from now on?
It's confusing but that's the best I can come up with.

The point is: be careful when using dhcp from a LiveCD.  Your system
might act differently the next time you boot the hard drive.

- Grant
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