Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Firewall traversal
Cisco VCS Administrator Guide (X7.1)
Page 227 of 479
Firewall traversal and Dual Network Interfaces
The Dual Network Interfaces option key enables the LAN 2 interface on your VCS Expressway (the option is
not available on a VCS Control). The LAN 2 interface is used in situations where your VCS Expressway is
located in a DMZ that consists of two separate networks - an inner DMZ and an outer DMZ - and your
network is configured to prevent direct communication between the two.
not available on a VCS Control). The LAN 2 interface is used in situations where your VCS Expressway is
located in a DMZ that consists of two separate networks - an inner DMZ and an outer DMZ - and your
network is configured to prevent direct communication between the two.
With the LAN 2 interface enabled, you can configure the VCS with two separate IP addresses, one for each
network in the DMZ. Your VCS then acts as a proxy server between the two networks, allowing calls to pass
between the internal and outer firewalls that make up your DMZ.
network in the DMZ. Your VCS then acts as a proxy server between the two networks, allowing calls to pass
between the internal and outer firewalls that make up your DMZ.
Note: all ports configured on the VCS, including those relating to firewall traversal, apply to both IP
addresses; it is not possible to configure these ports separately for each IP address.
addresses; it is not possible to configure these ports separately for each IP address.