GWP1600/2120 User Manual
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Table 5-12 Definition of NAT Settings Options
Options
Definition
Local Network
Format:192.168.0.0/255.255.0.0 or 172.16.0.0./12. A list
of IP address or IP ranges which are located inside a
NATed network. This gateway will replace the internal IP
address in SIP and SDP messages with the external IP
address when a NAT exists between the gateway
and other endpoints.
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.
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