Firewall traversal
This section describes how to configure your VCS Control and VCS Expressway in order to traverse
firewalls.
About firewall traversal 53
Configuring a traversal client and server 57
Configuring ports for firewall traversal 58
Firewall traversal and authentication 61
Configuring Expressway and traversal endpoint communications 62
About ICE and TURN services 63
Cisco VCS Administrator Guide (X8.1.1) Page 52 of 507