Draytek Vigor2925 Series User Manual page 192

WAN Connection
Detection
After finished the above settings, click OK to save the settings.
Vigor2925 Series User's Guide
Such function allows you to verify whether network
connection is alive or not through NS Detect or Ping Detect.
Mode – Choose NS Detect, Ping Detect or Always On for
the system to execute for WAN detection.
Always On - The network based on IPv6 will be kept
connected.
Ping IP – If you choose Ping Detect as detection mode, you
have to type IP address or hostname for pinging.

Ping IP/Hostname – Type the IP address/host name in
such field.

TTL (Time to Live) – Displays value for your
reference. TTL value is set by telnet command.
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