testing remote hosts with different source address

Hello everyone, I am using Hobbitmon 4.2 and I would like to set up a system with multiple IP addresses on network interface so that I can perform test to some hosts through an IP address and other tests through another IP address, and so on with multiple address aliases.

The hobbitping has a --source option but bbtest-net does not.

I have thought of using the LOCATION tag in bb-hosts and have multiple instances of bbtest-net in hobbitlaunch.cfg but I do not find a way to have packets exit from the system with a different source address for all TCP tests as well as ping.

Has anyone ever done such a setup?

thank you. Lorenzo Chiavacci