[Freeswitch-users] bind_server_ip issue

Hello! First of all, I would like to express my thanks to all the developers of Freeswitch. I am testing Freeswitch on a Debian machine with physical network interface with four virtual IP addresses. One of these IP addresses, aliased as eth0:3, has been created specifically for Freeswitch. I then set bind_server_ip with the IP addresses associated with eth0:3. To my surprise, however, tow things happen more or less randomly: 1) in certain cases, Freeswitch binds to eth0:2 instead (with a different IP address); and in another, although Freeswitch binds initially to eth0:3, after a few hours it changes its mind and rebinds to eth0:2. Is this an issue with bind_server_ip or am I missing some configuration detail? Thanks! Carlos