DGW-L1 User Manual
OpenVox Communication Co.Ltd www.openvox.cn
35
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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 exeternaddr or externhost setting if it matches
Dynamic Exclude
Static
Disallow all dynamic hosts from registering as any IP address used for
staticly defined hosts .This helps avoid the configuration error of allowing
your users to register at the same address as a SIP provide.
Externally
Mapped TCP Port
The externally mapped TCP port, when the gateway is behind a static NAT
or PAI
External Address
The external address (and optional TCP port) of the NAT. External
address=hostname [:port] specifies a static address[:port] to be used in
SIP and SDP messages. Examples: External address=12.34.56.78 External
address=12.34.56.78.9900
External
Hostname
The external hostname (and optional TCP port) of the NAT.
External Hostname=hostname[:port] is similar to
“External address”. Examples:
External Hostname=foo.dyndns.net
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.
