Hi, everybody ! I have read all the documentation and FAQ of squid-cache and I didn't found anything about doing failover when using 2 parents. The main idea is that I have one proxy for the internet access, connected through 10Mbit to the ISP, and another with another 10 Mbits to the ISP, connected in other branch-office. I have leased line between offices, and the two offices are using two class C internal networks. In the A-office I'm using child-proxy which redirects requests to the parent1, and I want to make failover in case when internet line for parent1 is down to redirect requests to parent2 in branch2. I'll try to make a scheme which describes the problem ISP1 ISP2 || || ------------------------------------- -------------------------------------- | Parent1 | | Parent2 | ------------------------------------- -------------------------------------- | | | Leased Line | -------------------------------------------------------- ----------------------------- | ------------------------------------- | Child-proxy | ------------------------------------ | | | | | | | USERS USERS I'll be very gratefull for any Ideas about solving this kind of issues ! Konstantin