Does the Symantec Web Gateway support Microsoft Lync in proxy mode?

Products

• Web Gateway

Issue/Introduction

You wish to proxy Microsoft Lync through the Symantec Web Gateway, but connections are timing out.

Cause

Microsoft Lync utilizes an OCSP response-signing certificate mechanism, and will not accept requests from uncertified hosts. The SWG does not support this process and is unable to complete the connection which subsequently times out.

Resolution

Use a proxy exemption or a PAC file to direct Microsoft Lync traffic away from the proxy so that it accesses the Internet directly.