Cisco Cisco Expressway メンテナンスマニュアル
Field
Description
Usage tips
TURN
requests port
requests port
The listening port for TURN requests. The default is
3478.
3478.
On Large systems you can configure a range of TURN
request listening ports. The default range is 3478 – 3483.
request listening ports. The default range is 3478 – 3483.
To allow endpoints such as Jabber
Video to discover TURN services, you
need to set up DNS SRV records for _
turn._udp. and _turn._tcp (either for
the single port, or range of ports as
appropriate).
Video to discover TURN services, you
need to set up DNS SRV records for _
turn._udp. and _turn._tcp (either for
the single port, or range of ports as
appropriate).
If you need to change the Turn
requests port (or range, for Large
systems) while the Turn services are
already On:
requests port (or range, for Large
systems) while the Turn services are
already On:
1.
Change Turn services to
Offand Save
Offand Save
2.
Edit the port number/range
3.
Change Turn services to
Onand Save
Onand Save
This is because changes to the port
numbers do not come into effect until
the TURN services are restarted.
numbers do not come into effect until
the TURN services are restarted.
Authentication
realm
realm
This is the realm sent by the server in its authentication
challenges.
challenges.
Ensure that the client's credentials are
stored in the local authentication
database.
stored in the local authentication
database.
Media port
range start /
end
range start /
end
The lower and upper port in the range used for the
allocation of TURN relays.
allocation of TURN relays.
The default TURN relay media port range is 24000 –
29999.
29999.
TURN server status
A summary of the TURN server status is displayed at the bottom of the TURN page. When the TURN server is active,
the summary also displays the number of active TURN clients and the number of active relays.
the summary also displays the number of active TURN clients and the number of active relays.
page, which lists all the currently active TURN relays on
the Expressway. You can also review further details of each TURN relay including permissions, channel bindings and
counters.
counters.
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Cisco Expressway Administrator Guide