I am trying to figure out how to configure up a failover setup. I have 2 ISP''s: 1. Wireless -- up to 2MPS 2. Fractional T1 - 384Kbps So, I want the wireless interface to be used in preference. The T1 connection comes into a Cisco 1605R router and from there into my external subnet. The Wireless connection comes straight in (I have no control over the ISP''s router) to the external subnet. The wireless ISP and T1-ISP provide different IP addresses to me. Furthermore, the wireless ISP does not provide any routing protocol data (RIP, OSPF, etc) into my subnet. My proxy/mail/DNS box has one physical interface, and I want to define multiple aliases, one for the address provided by each ISP. Furthermore, I want my proxy box to failover to using the T1 connection if the wireless connection goes down. I have tried to configure this, but the iproute2 commands do not seem to accept alias names for the device (eg. eth0:2). Can someone tell me how I should configure this setup? Thanks! Simon