We use BM 3.6 with 3 networks connected.
Our private network, Internet and an extranet.
On this extranet we need access to several servers. Access to these servers
is limited to IP addresses on the extranet. In its communication with the
servers on the extranet our BM server uses the ip address that is bound to
the internet interface . To access the servers on the extranet the BM server
should use the ip address bound to the interface of the extranet.

Please help.