Hi all,
We have deployed Lync 2010 in the following configuration
FrontEnd1 server 1.2.1.91
FrontEnd2 server 1.2.1.92
pool-nlb 1.2.1.90
Edge server with single network card:
a. Internal IP - 1.2.1.71
b. Sip access - 1.2.1.72
c. Web access -1.2.1.73
d. AV access - 1.2.1.74
1.2.1.72 - NATed to 4.4.4.1 and have external name sip.contoso.com
1.2.1.73 - NATed to 4.4.4.2 and have external name web.contoso.com
1.2.1.74 - NATed to 4.4.4.3 and have external name av.contoso.com
I've deployed reverse proxy based on IIS to rewrite all requests to ports 8080 ans 4443 on pool-nlb.
Reverce proxy is NATed to 4.4.4.5
All urls, such as meet and lyncdiscover point to reverseproxy address.
As firewall we have Cisco ASA 5510.
Everything works fine except whiteboard / PowerPoint / poll sharing for external users.
External users (including federated) can communicate, participate in conferences, share programs and desktop.
The only problem is WhiteBoard.