> Another work-around would be spoofing the MAC on your WAN to be that
> of the PC's NIC. Many times you need to reset the cable modem itself
> if you put a new device on it. E.g. another computer, a firewall,
> etc. Some cable companies restrict things down to the MAC you
> registered with them. E.g. your workstation probably. With all of
> these, spoofing the MAC from your PC's NIC on the WAN interface should
> get around it.
No, this is not the case for my ISP. They register the MAC of the
cablemodem to make sure nobody else will use your account.
When I change the device that gets the public WAN IP just have to
restart the cablemodem.
Maybe you got my issue wrong: My m0n0wall will receive it's public IP
via DHCP just fine, but after running all the day it will lose that IP