I am configuring two 1811s (1811 and 1811W) and have run into the same problem on both. Configuration has started out with SDM, but debugging and "final" config is through the console.
I have 4 private nets (192.168.1.1, .2,.3,.4) that are running on their own vlans (1,2,3,4). I want each of them to dynamically NAT through the single WAN ip address on the WAN port (FastEthernet0).
DHCP servers on all 4 VLANS work correctly, but only VLAN 1 (native, BTW) appears to be getting NAT'd. I have turned on "debug ip nat" and seen NAT activity when coming out of VLAN 1....but there is no apparent NAT activity when I use other VLANs.
I also have an easy VPN ipsec channel open and, therefore, have route maps for all the NATs. I think they are correct; but, even if not, I would expect to be able to see some "deny" matches from non VLAN 1 activity....but I don't.
Config file, sorry about the length, is attached for reference. I had my old 1711 configured properly, but that was several IOS's ago. Both of these routers are on 12.4.
Any help would be appreciated....I'm guessing this is a simple config oversight on my part.