How to make skype or another non-ssl protocol on port 443 to work with transparent proxy with interception enabled for port 443?

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1.      Set the proxy configuration / Services / Proxy services / HTTPS / port 443 / Proxy setting as TCP Tunnel, (It must be TCP tunnel, not SSL proxy), Enable Detect protocol, All source IP, All destination IP, port 443, Intercept.

2.      In Proxy Setting / General / Enable TCP Tunnel requests when a protocol error detected. This option only available after SGOS 5.5.

Note as online document or proxy Admin guide:

For the SSL proxy, the Tunnel on Protocol Error option applies when non-SSL traffic arrives at the SSL port (443 by default). A common scenario that causes this is having peer-to-peer applications (viz, Skype, BitTorrent, Gnutella, older AOL-IM and eMule) configured to enable port 443 for peer-to-peer traffic without SSL set as the transport protocol. A ProxySG transparently intercepting all 443 traffic cannot process these connections, rendering the application unusable.

Additional Information
Bug Number
InQuira Doc IdFAQ1713

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First Published      10/01/2014
Last Modified      10/01/2014
Last Published      10/01/2014
Article Audience
Product      ProxySG
Software      SGOS 5.5, SGOS 6
Topic      SSL / HTTPS
Article Number      000011270
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