You can check it inside of your MWG.
what ports are you looking for? Those MWG requires for incoming or outgoing connections?
For Incoming we have (for example):
9090 for the proxy
4711/4712 for the UI
For Outgoing we have (for example):
443 for updates
445 for NTLM Authentiaction
389 for LDAP Authentication
80/443 for Internet Access
Please note that if possible MWG may work better with no restrictions for outgoing connections. In case a web site uses a custom port such as 8000 MWG will have to talk to that port, otherwise the end-user will not be able to browse that site. Depending on which authentication method you use or with what other systems you interact additional ports may be required.
for central management the default port is 12346
Thanks to all you guys for responding! Appreciate it. I would just compile all of your answers!