dhcp, dhclient, and roadrunner

Hello,
I'm having an issue with my roadrunner. At first i thought it was a
firewall issue but since i have to restart dhclient for the new ip to be
picked up the firewall guy's say no.
My issue is i'm running a gateway box connected to rr via a linux box.
That's running dhclient from isc as it's dhcp client getting it's ip via rr.
My issue is whenever roadrunner changes my ip, which usually happens when
i'm away, i have to get back here, rerun dhclient on the interface, and
reload the firewall before the new ip is registered. An ifconfig on the
interface shows the old ip still in place even though it's been
reappropriated, and pinging or anything else doesn't work until i do the
reset.
There's nothing in my dhclient.conf file. I've read of similar issues,
but no fixes. Does anyone have any suggestions?
Thanks.
Dave.


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