Cisco Cisco TelePresence Video Communication Server Expressway
9
SIP call to endpoint with public IP address
public
Internet
VCS Expressway
source port
Internet endpoint
server (listening) port
VCS Expressway
server (listening) port
Internet endpoint
source port
Call direction
Outbound to an endpoint in the
Internet
Inbound from an endpoint in the
Internet
Open firewall
DMZ to Internet
Internet to DMZ
IP address
IP address of
VCS Expressway
Any IP address
IP address of
VCS Expressway
Any IP address
IP Po
rt
s
SIP signaling
UDP C
5060
TCP & TLS A
25000 to 29999
UDP & TCP &
TLS F
5060 or >= 1024
UDP: C
5060
TCP: K
5060
TLS: L
5061
UDP G
5060 or >= 1024
TCP & TLS H
>= 1024
RTP
UDP Y
E
36002 to 59999 **
UDP E
>= 1024
UDP Y
E
36002 to 59999 **
UDP E
>= 1024
RTCP
UDP Y
E
36002 to 59999 **
UDP E
>= 1024
UDP Y
E
36002 to 59999 **
UDP E
>= 1024
C = Protocols > SIP > UDP port: default = 5060
A = Protocols > SIP > TCP Outbound port start to
end: default = 25000 to 29999
F = defined by endpoint’s registration (or not
registered, IP port is defined by DNS lookup) any
port >= 1024, often 5060 for UDP
port >= 1024, often 5060 for UDP
K = Protocols > SIP > TCP port: default = 5060
L = Protocols > SIP > TLS port: default =5061
G = any port >= 1024, often 5060 for hard endpoints
H = any port >= 1024
Y
E
= Local Zone > Traversal Subzone > Traversal
Media port start to end (configured on VCS
Expressway): default =
Expressway): default =
36000 to 59999 **
E = Endpoint media port range; value used is
specified in the SDP:
= any IP port above 1024
= 36000 to 59999 ** for another VCS
= 2326 to 2385 for MXP static setting
= 11000 to 65000 for MXP dynamic setting
= any IP port above 1024
= 36000 to 59999 ** for another VCS
= 2326 to 2385 for MXP static setting
= 11000 to 65000 for MXP dynamic setting
** The default media port range of 36000 to 59999 applies
to new installations of X8.1 or later. The first 2 ports in the
range are used for multiplexed traffic only (with Large VM
deployments the first 12 ports in the range – 36000 to
36011 – are used). The previous default range of 50000 -
54999 still applies to earlier releases that have upgraded
to X8.1.
to new installations of X8.1 or later. The first 2 ports in the
range are used for multiplexed traffic only (with Large VM
deployments the first 12 ports in the range – 36000 to
36011 – are used). The previous default range of 50000 -
54999 still applies to earlier releases that have upgraded
to X8.1.
VCS Control
VCS Expressway
DMZ