Dell KVM 4322DS - Manual (Page 49)

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Port
Number
Function
TCP 443
Used by the web browser interface for managing the
switch and launching KVM sessions. The RCS Admin can
change this value.
TCP
2068 Transmission of KVM session data (mouse & keyboard) or
transmission of video on switches.
TCP/UDP
3211
Discovery.
TCP 389
(Optional) Used by LDAP Directory Services; standard
access port
TCP 636
(Optional) Used by LDAP Directory Services; Secure/SSL
port
TCP
3268 (Optional) Used by Microsoft Active Directory Services;
standard access port
TCP
3269 (Optional) Used by Microsoft Active Directory Services;
Secure/SSL access port
The following figure and table provide a typical configuration, where the user’s
computer is located outside of the firewall and the switch resides inside the
firewall.
Figure 2.13: Typical RCS Firewall Configuration