September 14, 2006

IP Renewal when moving between networks

On Ubuntu when I move my laptop from one subnet to another (desk to conference room for example) the dhcp ip doesn't reload. Previously I would disable the adapter then re-enable it but that took a bit of time. I found that you can use dhclient to do the trick from a shell:

sudo dhclient -r to release ip.

sudo dhclient -1 to renew ip. (that is a -one not the letter 'l').

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