Question : Using AUX port in Cisco 1811

Can I use the AUX port in a Cisco 1811 for a regular WAN or LAN port. I want to use it as a WAN port and use the two fast ethernet ports for two different subnet LANs.

Also, if this is possble, will the DHCP server in the cisco router serve two different subnets?

Answer : Using AUX port in Cisco 1811

The AUX port can only be used for dialin and dialout over an analog phone line.  It can not be used for ethernet or any WAN protocol.