Ubiquiti Networks PowerBridgM - Manual (Page 55)

52
Chapter 7: Services Tab airOS ™ v5.5.4 User Guide
Ubiquiti Networks, Inc.
Chapter 7: Services Tab
The Services tab configures system management services:
Ping Watchdog, SNMP, servers (web, SSH, Telnet), NTP,
DDNS, system log, and device discovery.
Change To save or test your changes, click Change.
A new message appears. You have three options:
•
Apply To immediately save your changes, click Apply.
• Test To try the changes without saving them, click
Test. To keep the changes, click Apply. If you do not
click Apply within 180 seconds (the countdown is
displayed), the device times out and resumes its earlier
configuration.
• Discard To cancel your changes, click Discard.
Ping Watchdog
Ping Watchdog sets the device to continuously ping a
user-defined IP address (it can be the Internet gateway,
for example). If it is unable to ping under the user-defined
constraints, then the device will automatically reboot. This
option creates a kind of “fail-proof” mechanism.
Ping Watchdog is dedicated to continuous monitoring of
the specific connection to the remote host using the Ping
tool. The Ping tool works by sending ICMP echo request
packets to the target host and listening for ICMP echo
response replies. If the defined number of replies is not
received, the tool reboots the device.