What ports to forward?

[Asgar]

I am using SBS which is running on a DSL connection through an SMC router. So, to make use of full functionality of SBS I want to forward external port 25 to internal port 25 and IP of the SBS server and port 80 for website. I have got exchange working but I am not able to get other features such as RWW working. Can you tell me what ports I have to forward, that is, outlook web access or remote web access, etc. Is there any other ports I must be forwarding? Thanks.

[Dr.pter]

Check the router settings that I am using:

For incoming ports that should NOT be open
21 FTP (File Transfer Protocol)
80 HTTP (Internal Website)
23 Telnet
3389- Not necessary, only needed inside the LAN. 3389 redirects to 4125

For incoming ports that SHOULD be open
25 SMTP (Mail)
443 HTTPS (SSL for Outlook Web Access - OWA)
444 (CompanyWeb Intranet via Sharepoint)
1723 VPN (PPTP) – Only if you are using VPN
4125 Remote Web Workplace (RWW) so clients can connect to their internal client machines from outside the building via \Remote.

More information can be found here - http://www.microsoft.com/technet/pro...sg/appx_c.mspx