remote connection to console process behind firewall?

Hi,

I would like to set up pycharm development environment to remote server behind firewall.

I added ssh port forwarding on NAT, and it works fine.

But, when I run Tools->Python Console, it fails to connect console process.

Console process is launched by ssh://userid@hostip:hostport/usr/bin/python /userid/.pycharm_helpers/pydev/pydevconsole.py 0 0, and random ports are used as listening ports for console process.

I think these ports should be specified on NAT.

How can I configure these ports on pycharm?

Thanks,

Jae-Hyuck