Well strictly speaking your not dealing with TCP at the mo, you are dealing with a protocol called IPCP, a subcomponent of PPP which can be used to negotiate link addresses. Not that that helps you in any way!
If the router is negotiating an address with your ISP, then you should not be configuring any address locally to your router.
81.0.0.0 and 1.0.0.0 aren't valid subnet masks anyway, they are non-contiguous bit sequences, so I'm not quite sure whats going on there!
Look in the manual there should be some sort of setting to make the local wan address "assigned" or "negotiated"
If it was a cisco I could help more!!
Cheers
|