I have a both a cable modem and an ISDN modem on my network. I'd like to use the ISDN modem only for specific a specific domain (22.214.171.124), and use the cable modem to access the rest of the internet (since it's much quicker). I'd like to minimize ISDN usage, I get charged per minute and I need to wait for the connection (it automatically disconnects after 45 seconds of inactivity). My current configuration has two gateways - one for ISDN and one for Cable. The cable router is the default gateway, and ISDN is the secondary gateway. My name server list also specifies the DNS on the cable side first. I route any 126.96.36.199 requests to the secondary gateway. Despite this setup, I sometimes see traceroutes that go through the ISDN instead of the cable modem. How do I avoid this and how should I configure my routers and machines? I am using WinNT, Win2000, Win98, and Solaris 7. The routers are a Pipeline75 (Lucent/ISDN) and a BEFSR41 (Linksys/Cable).