Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 2 – DNS records configuration
Cisco VCS Deployment Guide: Basic configuration – VCS Control with VCS Expressway
Page 52 of 59
Appendix 2 – DNS records configuration
DNS configuration on host server
The following records are required to be configured in the external DNS which hosts the externally
routable domain: example.com to allow:
routable domain: example.com to allow:
n
external endpoints registration messages to be routed to the Cisco VCS Expressway
n
calls from non-registered endpoints (or other infrastructure devices) to be routed to the Cisco VCS
Expressway
Expressway
Host DNS A record
Host
TTL
Type
Data
vcse.example.com
86400
A
192.0.2.2
DNS SRV records
Service
Protocol
Host
Port
Notes
h323cs
tcp
_h323cs._tcp.example.com
1720
h323ls
udp
_h323ls._udp.example.com 1719
sip
tcp
_sip._tcp.example.com
5060
sip
udp
_sip._udp.example.com
5060
sips
tcp
_sips._tcp.example.com
5061
sips
tls
_sips._tls.example.com
5061
For E20 TE2.1
sip
tls
_sip._tls.example.com
5061
For MXP F8.2, T150 L6.0, Movi prior to version 3.1
For each DNS SRV record the following values are common:
Name
example.com
TTL
86400
Type
SRV
Priority
10
Weight
10
Target
vcse.example.com.