3Com VCX v7111 User Manual page 79

Parameter
Proxy DNS Query Type
[ProxyDNSQueryType]
Enable Proxy SRV Queries
[EnableProxySRVQuery]
Redundancy Mode
[ProxyRedundancyMode]
Is Proxy Trusted
[IsTrustedProxy]
Enable Registration
[IsRegisterNeeded]
Registrar Name
[RegistrarName]
®
3Com VCX V7111 VoIP Gateway User Guide
Description
Enables the use of DNS Naming Authority Pointer (NAPTR) and Service
Record (SRV) queries to discover Proxy servers. Valid options include:
[0] = A-Record (default)
[1] = SRV
[2] = NAPTR
If set to A-Record, no NAPTR or SRV queries are performed.
If set to SRV and the Proxy IP address parameter contains a domain name
without port definition (for example, ProxyIP = domain.com), an SRV query
is performed. The SRV query returns up to four Proxy host names and
their weights. The gateway then performs DNS A-record queries for each
Proxy host name (according to the received weights) to locate up to four
Proxy IP addresses. Therefore, if the first SRV query returns two domain
names, and the A-record queries return two IP addresses each, no more
searches are performed.
If set to NAPTR, an NAPTR query is performed. If it is successful, an SRV
query is sent according to the information received in the NAPTR
response. If the NAPTR query fails, an SRV query is performed according
to the configured transport type.
If the Proxy IP address parameter contains a domain name with port
definition (for example, ProxyIP = domain.com:5080), the gateway
performs a regular DNS A-record query.
When enabled, NAPTR/SRV queries are used to discover Proxy
servers even if the parameter DNSQueryType is disabled.
This parameter is obsolete. Please use the parameter
ProxyDNSQueryType.
Parking [0] = Gateway continues working with the last active Proxy until
the next failure (default).
Homing [1] = Gateway always tries to work with the primary Proxy server
(switches back to the main Proxy whenever it is available).
To use ProxyRedundancyMode, enable Keep-alive with Proxy
option (EnableProxyKeepAlive=1 or 2).
This parameter is not applicable and must always be set to Yes [1].
The parameter AssertedIdMode should be used instead.
No [0] = Gateway does not register to Proxy / Registrar (default).
Yes [1] = Gateway registers to Proxy / Registrar when the device is
powered up and every RegistrationTime seconds.
The gateway sends a REGISTER request for each channel or for
the entire gateway (according to the AuthenticationMode
parameter).
Registrar Domain Name.
If specified, the name is used as Request-URI in REGISTER messages.
If is not specified (default), the Registrar IP address or Proxy name or
Proxy IP address is used instead.
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