6.2

Table 1‑11. TCP and UDP Ports Used by View (Continued)
Source Port Target Port
Protoc
ol Description
Security server * View desktop 22443 TCP HTML Access.
View Agent 4172 Horizon Client Varies UDP PCoIP, if PCoIP Secure Gateway is not used.
NOTE Because the target port varies, see “Notes
and Caveats for TCP and UDP Ports Used by
View,” on page 21.
View Agent 4172 View
Connection
Server or
security server
55000 UDP PCoIP (not SALSA20) if PCoIP Secure Gateway is
used.
View Agent 4172 Access Point
appliance
* UDP PCoIP. View desktops and applications send PCoIP
data back to an Access Point appliance from UDP
port 4172 .
The destination UDP port will be the source port
from the received UDP packets and so as this is
reply data, it is normally unnecessary to add an
explicit firewall rule for this.
Horizon Client * View
Connection
Server or
security server
or Access Point
appliance
80 TCP SSL (HTTPS access) is enabled by default for client
connections, but port 80 (HTTP access) can be used
in certain cases. See “Notes and Caveats for TCP
and UDP Ports Used by View,” on page 21.
Horizon Client * View security
server or
Access Point
appliance
443 TCP HTTPS access. Port 443 is enabled by default for
client connections. Port 443 can be changed on
security servers.
Connection attempts over HTTP to port 80 are
redirected to port 443 by default, but port 80 can
service client connections if SSL is off-loaded to an
intermediate device. You can reconfigure the
redirection rule if the HTTPS port was changed. See
“Notes and Caveats for TCP and UDP Ports Used
by View,” on page 21.
Horizon Client * View
Connection
Server
443 TCP HTTPS access. Port 443 is enabled by default for
client connections. Port 443 can be changed.
Client connection attempts to port 80 are redirected
to port 443 by default, but port 80 can service client
connections if SSL is off-loaded to an intermediate
device. Connection attempts to port 80 to reach
View Administrator are not redirected. You must
connect over HTTPS to reach View Administrator.
You can prevent HTTP redirection and force clients
to use HTTPS. See “Notes and Caveats for TCP and
UDP Ports Used by View,” on page 21.
Horizon Client * View
Connection
Server or
security server
or Access Point
appliance
4172 TCP
and
UDP
PCoIP if PCoIP Secure Gateway is used.
Horizon Client * View desktop 3389 TCP Microsoft RDP traffic to View desktops if direct
connections are used instead of tunnel connections.
Horizon Client * View desktop 9427 TCP Windows Media MMR redirection and client drive
redirection, if direct connections are used instead of
tunnel connections.
Chapter 1 View Security Reference
VMware, Inc. 19