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8 CHAPTER 1: VCX SYSTEM SECURITY
TCP Port Access Use the information in this section to configure your internal firewall. The
VCX system allows remote network access to these TCP ports:
Back End Server Ports The Back End Servers (Accounting Server, Authentication and Directory
Server) use these ports in order to provide redundant service to remote
clients. Normally, these ports can be blocked by the internal firewall.
However, if the redundant servers are separated on either side of the
internal firewall, the firewall must be configured to not block these ports.
Port Number Port Type Service Requiring the Port
22 TCP SSH
53 UDP DNS
80 TCP HTTP
123 UDP NTP
161 UDP SNMP
443 TCP HTTPS
2093 UDP SIP downloader
5060 UDP SIP
5065 UDP SIP
Note: Port 5065 is used only on a branch office server that:
■ Uses only the eth0 network interface
■ Runs the IP Telephony and Messaging software configuration
Port Value Service Requiring the Port
1521 Oracle Listener Service
1645 3Com Authentication Server (RADIUS)
1646 3Com Accounting Server (RADIUS)
1781 3Com Accounting Server (3Q)
1783 3Com Directory Server (3Q)
1784 3Com Authentication Server (3Q)
1786 3Com Accounting Server (3Q)
1788 3Com Directory Server (3Q)
1789 3Com Authentication Server (3Q)
38000 Global Directory Server (used between multiple regions
and between regions and branches)