Cisco Cisco Expressway メンテナンスマニュアル
* The default media traversal port range is 36000 to 59999, and is set on the Expressway-C at
Configuration
> Traversal Subzone
. In Large Expressway systems the first 12 ports in the range – 36000 to 36011 by
default – are always reserved for multiplexed traffic. The Expressway-E listens on these ports. You cannot
configure a distinct range of demultiplex listening ports on Large systems: they always use the first 6 pairs in
the media port range. On Small/Medium systems you can explicitly specify which 2 ports listen for
multiplexed RTP/RTCP traffic, on the Expressway-E (
configure a distinct range of demultiplex listening ports on Large systems: they always use the first 6 pairs in
the media port range. On Small/Medium systems you can explicitly specify which 2 ports listen for
multiplexed RTP/RTCP traffic, on the Expressway-E (
Configuration > Traversal > Ports
). If you choose
not to configure a particular pair of ports (Use configured demultiplexing ports = No), then the
Expressway-E will listen on the first pair of ports in the media traversal port range (36000 and 36001 by
default).
Expressway-E will listen on the first pair of ports in the media traversal port range (36000 and 36001 by
default).
** On Large systems you can configure a range of TURN request listening ports. The default range is 3478 –
3483.
3483.
Cisco Expressway Administrator Guide (X8.5.1)
Page 52 of 399
Firewall traversal
Configuring ports for firewall traversal