This object determines the kind of resolution to
be applied for this MGC.
'internalOnly' means that the gateway will not try to
resolve the IP address for this domain name using
external DNS name server.
'externalOnly' means the IP address for this domain name
will be resolved externally using DNS name server.
The request to change from 'internalOnly' to 'externalOnly'
will be rejected if the DNS name server is not available
for gateway.
The IP addresses related to the same MGC should have the
same cMgcResolution. The value of the MGC associated objects
in the cMgcIpConfigTable can not be modified by NMS if the
value of cMgcResolution for the MGC is 'externalOnly'.
The following are the behavior of changing the value of this
object.
[1] changing the value from 'externalOnly' to 'internalOnly'
1) precondition
MGC is not associated with any MGC group
(value of cMgcNumMgcGroups is zero).
2) behavior
If the value of this object is changed successfully,
all existing IP addresses in cMgcIpConfigTable that are
associated to the MGC will be removed automatically.
Note that MGW can't communicate with MGC if NMS does not
add static IP address into cMgcIpConfigTable for the MGC.
[2] changing the value from 'internalOnly' to 'externalOnly'
1) precondition
All MGC associated statically configured IP addresses
must be removed from cMgcIpConfigTable by NMS before
setting 'externalOnly' value to this object.
An inconsistentValue error is generated for setting
'externalOnly' value if the MGC associated IP addresses
are not removed.
2) behavior
After successfully setting 'externalOnly' value to this
object, the MGC domain name will be resolved by MGW
software using external DNS name server and the resulting
IP addresses will be added to cMgcIpConfigTable
automatically.