Using a 1801 router with IOS 12.1.
Have the Dialer (PPP) inteface up and working, allocated the 8 switch ports to a single VLAN and happily ping the address allocated to the VLAN.
Need to use the FastEthernet0 as the inside and PPP as the outside to provide eventually a link to another site over a VPN.
I have allocated an IP address of 192.168.35.230 to the the IP address of the VLAN.
I want my default route to be point to thr FastEthernet0 interface. So set that to 192.168.35.254 and try to apply that IP to the FastEthernet0 interface. Return IP address map error if i assign this. I dont seem to be able to assign an IP to the interface and use this as the default gateway