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Field Name
Description
STUN Server User Name
The username by which the gateway accesses the STUN infrastructure. Max 256 characters in length.
Special characters are valid. The value will be hidden.
STUN Server Password
The password by which the modem authenticates the above username to the STUN infrastructure.
Max 256 characters in length. Special characters are valid. The value will be hidden.
STUN Server Maximum Keep Alive
Period *
[0-Unlimited] Value is time in seconds. Default = -1 which specifies that there will be NO keep-alive
period maximum limit.
STUN Server Minimum Keep Alive
Period *
[0-Unlimited] Value is time in seconds. Default = 0 seconds.
* This mechanism is used in coordination with the refreshing of NAT bindings. Specifically, in conjunction with use of Restricted Cone NAT or
Port Restricted Cone NAT (as may be configured in some gateways). A device’s internal address / port mappings, which the STUN protocol is
allowed to make use of, can have keep alive values attributed. These minimum and maximum keep alive times define respectively, the minimum
time to retain the mapping information STUN has discovered, and the maximum time to retain that information, before refreshing it through
forced re-discovery.
With the above-mentioned NAT schemes it is possible the network address translation initially established may not be used after a specified
elapsed time. Such internal mapping is dropped. The gateway will then assign a different address mapping. This mechanism within the STUN
protocol allows for coordinated refresh on the bindings for mappings it uses. For further information, review STUN-related RFCs.
Selecting appropriate values for these two fields are a influenced by a variety of environmental factors including devices types deployed, services
employed and NAT configuration options enabled within the topology.
Internet Time
Sync the clock in your gateway with reliable external clocking servers available on the Internet.
After selecting
Management -> Internet Time
you may check the checkbox on the first line to enable the Network Time Protocol. You may select
or input your own NTP servers.
Select the desired time zone for the gateway.
Click
Apply/Save
to commit your settings.