I have a Sophos UTM v9.308-16 and I am trying to setup VMware Horizon View 6 behind the Web Application Firewall. HTTPS and HTML Blast (8443) work fine behind the WAF but I cannot get PCoIP (TCP/UDP 4172) to work. I have tried specifying HTTPS, Blast and PCoIP in WAF and I have tried specifying HTTPS and Blast in WAF and PCoIP in in the firewall. When I try to authenticate with the View client it hangs on "Authenticating" then fails with "connect lost" error. When I specify HTTPS, Blast and PCoIP in the firewall, everything works. So I am looking for some assistance in identifying what I am overlooking as it looks like it maybe something timing out on the UTM. I using the WAF because I only have one IP address and this setup works for other applications like Exchange OWA and ownCloud. Any ideas?
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