How to release and renew the DHCP lease from Terminal

Network

From the Terminal, how can I release and renew my DHCP lease?

Currently, I'm doing the following for the wireless interface, but I'm wondering if there's a better way:

sudo ifconfig en1 down
sudo ifconfig en1 up

For the wired interface, replace en1 with en0.

Best Answer

This can also be achieved with the following two commands :

sudo ipconfig set en0 BOOTP
sudo ipconfig set en0 DHCP

You can alias the two together in your bash profile:

alias renew="sudo ipconfig set en0 BOOTP && sudo ipconfig set en0 DHCP"

So then you just have one command called renew that will release and renew your DHCP.

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