VS-GW2120 Series User Manual
OpenVox Communication Co.Ltd
34
Local Network List
Local IP address list that you added.
Subscribe Network
Change Event
Through the use of the test_stun_monitor module, the gateway has the
ability to detect when the perceived external network address has
changed. When the stun_monitor is installed and configured, chan_sip will
renew all outbound registrations when the monitor detects any sort of
network change has occurred. By default this option is enabled, but only
takes effect once res_stun_monitor is configured. If res_stun_monitor is
enabled and you wish to not generate all outbound registrations on a
network change, use the option below to disable this feature.
Advanced: NAT Settings
Table 4-2-2 Definition of NAT Settings Options
Options
Definition
Match External
Address Locally
Only substitute the externaddr or externhost setting if it matches.
Dynamic Exclude
Static
Disallow all dynamic hosts from registering as any IP address
used for statically defined hosts. This helps avoid the configuration error
of allowing your users to register at the same address as a SIP provider.
Externally
Mapped TCP Port
The externally mapped TCP port, when the gateway is behind a static NAT
or PAT.
External
Hostname
The external hostname (and optional TCP port) of the NAT.
Hostname Refresh
Interval
How often to perform a hostname lookup. This can be useful when your
NAT device lets you choose the port mapping, but the IP address is
dynamic. Beware, you might suffer from service disruption when the
name server resolution fails.
