Field Description Usage tips
Delegated
credential
checking
Controls whether the credential checking of
TURN server requests is delegated, via a
traversal zone, to another VCS. The associated
Authentication realm determines which traversal
zone is used.
Off: use the relevant credential checking
mechanisms (local database or H.350 directory
via LDAP) on the VCS performing the
authentication challenge.
On: delegate the credential checking to a
traversal client.
The default is Off.
See delegated credential checking for more
information.
Authentication
realm
This is the realm sent by the server in its
authentication challenges.
n When Delegated credential checking is Off,
this is a free-form text field.
n When Delegated credential checking is On,
you choose from the set of configured SIP
domains. The chosen domain also determines
the traversal zone through which credential
checking is delegated.
When Delegated credential checking is
Off, ensure that the client's credentials are
stored in the relevant device authentication
database.
Media port
range start /
end
The lower and upper port in the range used for
the allocation of TURN relays.
The default TURN relay media port range of
24000 – 29999 applies to new installations of
X8.1 or later. The previous default range of 60000
– 61799 still applies to earlier releases that have
upgraded to X8.1.
TURN relay status information
The TURN relays page lists all the currently active TURN relays on the VCS. You can also review further
details of each TURN relay including permissions, channel bindings and counters.
Cisco VCS Administrator Guide (X8.1.1) Page 65 of 507
Firewall traversal
About ICE and TURN services
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