Cisco Cisco Expressway
18
SIP: internal
Expressway-C
source port
Endpoint
listening port
Expressway-C
listening port
Endpoint
source port
Call direction
Expressway-C to endpoint
Endpoint to Expressway-C
Open firewall
n/a
n/a
IP address
IP address of
Expressway-C
IP address
of endpoint
IP address of
Expressway-C
IP address
of endpoint
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
C
36002 to 59999 *
UDP E
>= 1024
UDP Y
C
36002 to 59999 *
UDP E
>= 1024
RTCP
UDP Y
C
36002 to 59999 *
UDP E
>= 1024
UDP Y
C
36002 to 59999 *
UDP E
>=1024
C = Protocols > SIP > UDP port: default = 5060
A = Protocols > SIP > TCP Outbound port start to end:
A = Protocols > SIP > TCP Outbound port start to end:
default = 25000 to 29999
F = IP port is defined by DNS lookup; any 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
L = Protocols > SIP > TLS port: default =5061
G = any port >= 1024, often 5060 for hard endpoints
H = any port >= 1024
Y
C
= Local Zone > Traversal Subzone > Traversal
Media port start to end (configured on
Expressway-C): default =
Expressway-C): default =
36000 to 59999 *
E = Endpoint media port range; value used is specified
in the SDP:
= any IP port above 1024
=
= any IP port above 1024
=
36000 to 59999 *
for another Expressway
= 2326 to 2385 for MXP static setting
= 11000 to 65000 for MXP dynamic setting
= 11000 to 65000 for MXP dynamic setting
* 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).
only (with Large VM deployments the first 12 ports in the
range – 36000 to 36011 – are used).
Internet
Expressway-C
Expressway-E
DMZ