Cisco Cisco TelePresence Video Communication Server Expressway
Local DNS A record
Host
Host IP address
vcsc.internal-domain.net
10.0.0.2
Local DNS SRV records
Name
Service
Protocol
Priority
Weight
Port
Target host
internal-domain.net.
h323cs
tcp
10
10
1720
vcsc.internal-domain.net.
internal-domain.net.
h323ls
udp
10
10
1719
vcsc.internal-domain.net.
internal-domain.net.
h323rs
udp
10
10
1719
vcsc.internal-domain.net.
internal-domain.net.
sip
tcp
10
10
5060
vcsc.internal-domain.net.
internal-domain.net.
sip
udp *
10
10
5060
vcsc.internal-domain.net.
internal-domain.net.
sips
tcp
10
10
5061
vcsc.internal-domain.net.
* SIP UDP is disabled on VCS by default.
For example, the DNS records would be:
_h323cs._tcp.internal-domain.net. 86400 IN SRV 10 10 1720 vcsc.internal-domain.net.
_h323ls._udp.internal-domain.net. 86400 IN SRV 10 10 1719 vcsc.internal-domain.net.
_h323rs._udp.internal-domain.net. 86400 IN SRV 10 10 1719 vcsc.internal-domain.net.
_sip._tcp.internal-domain.net. 86400 IN SRV 10 10 5060 vcsc.internal-domain.net.
_sip._udp.internal-domain.net. 86400 IN SRV 10 10 5060 vcsc.internal-domain.net.
_sips._tcp.internal-domain.net. 86400 IN SRV 10 10 5061 vcsc.internal-domain.net.
vcsc.internal-domain.net. 86400 IN A 10.0.0.2
If you have a cluster of VCS Controls, you must set up DNS A and SRV records for each peer/host in the
cluster. See VCS Cluster Creation and Maintenance Deployment Guide for more information.
cluster. See VCS Cluster Creation and Maintenance Deployment Guide for more information.
Cisco TelePresence Video Communication Server Basic Configuration (Control with Expressway) Deploy-
ment Guide (X8.5)
ment Guide (X8.5)
Page 50 of 66
Appendix 2: DNS records