Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 6 — IP Ports used on VCS for authentication
VCS Deployment Guide: Device authentication on Cisco VCS (VCS X7.2)
Page 32 of 50
Appendix 6 — IP Ports used on VCS for
authentication
authentication
H.350 directory service
The following table lists the ports used for device authentication between VCS and the H.350 directory
service server:
service server:
VCS port
Destination port
Usage
TCP/40000 .. 49999
TCP/389 or
TCP/636
TCP/636
H.350 LDAP server
Active Directory (direct)
The following table lists the ports used for device authentication between VCS and the AD system:
VCS port
Destination port
Usage
UDP/10000 .. 10210
UDP/53
DNS Server
UDP/40000 .. 49999
UDP/88
Kerberos Key Distribution Center
TCP/40000 .. 49999
TCP/88
Kerberos
UDP/40000 .. 49999
UDP/389
VCS with Domain Controller
TCP/40000 .. 49999
TCP/389 or TCP/636
VCS with Domain Controller
TCP/40000 .. 49999
TCP/445 or TCP/139
Client credential authentication with the Domain Controller.
VCS initially tries port 445, but if that cannot be reached tries
port 139.
VCS initially tries port 445, but if that cannot be reached tries
port 139.