How to get ip address automatically from different dhcp server

[dave jones]

Hi,

I cat get an IP address from dhcp server by adding the line in /etc/rc.conf:

ifconfig_em0="DHCP"

If I move my laptop to another place, I have to manually run "dhclient em0"
to get an IP. Otherwise, it won't get an IP automatically.

My question is it's possible to get ip address automatically from different
dhcp server? thanks.

Regards,
Dave.