Operation Manual

Vigor2120 Series User’s Guide
130
Tunnel ID
One user account may have several tunnels. And, each
tunnel shall have one specified tunnel ID (e.g., T115394).
Type the ID offered by Tunnel Broker.
Subnet Prefix
Type the subnet prefix address obtained from service
provider.
The maximum length of the prefix you can set is 128
characters.
WAN Connection
Detection
Such function allows you to verify whether network
connection is alive or not through Ping Detect.
Mode –Choose Always On, Ping Detect or NS Detect for
the system to execute for WAN detection. With NS Detect
mode, the system will check if network connection is
established or not, like IPv4 ARP Detect. Always On
means no detection will be executed. The network
connection will be on always.
 Ping IP/Hostname – If you choose Ping Detect as
detection mode, you have to type IP address in this field
for pinging.
 TTL (Time to Live) –If you choose Ping Detect as
detection mode, you have to type TTL value.
After finished the above settings, click OK to save the settings.