Installation guide

QuadroCS Manual II: Administrator's Guide Administrator's Menus
QuadroCS (SW Version 3.1.x) 31
The RTP Parameters page is used to choose between the
STUN and Manual NAT traversal connection for the RTP traffic
and to define the RTP/RTCP ports for the connection over NAT.
Manipulation radio buttons allow you to select the type of
connection over NAT:
Selecting Use STUN will switch to automatic discovery of
Mapped settings for the RTP UDP traffic over NAT. STUN
settings are configured on the STUN Parameters page (see
below).
Selecting Use Manual NAT Traversal allows you to manually
define the RTP/RTCP port ranges for the RTP traffic over NAT:
• The Mapped Host text fields require the Mapped Host for
RTP traffic over NAT.
• Mapped RTP/RTCP Port Range for Participants:
• Min - minimal port has to be higher than 1024 and lower
than the maximal port range. Only even numbers are
allowed.
• Max - maximal port has to be lower than 65536 and
higher than the minimal port range. Only odd numbers
are allowed.
Please Note: RTP/RTCP Mapped Port ranges should be
greater than or equal to the RTP/RTCP port ranges defined on
the
RTP Settings page.
Fig. II-55: RTP Parameters page
The STUN Parameters page enables automatic NAT
configuration through the STUN server and is used to configure
the STUN (Simple Traversal of UDP over NAT) client on the
Quadro. This page requires the following data to be inserted:
The STUN Server text field requires the STUN server’s
hostname or IP address. The STUN Port text field requires the
STUN server port number.
The Secondary STUN Server and Secondary STUN Port text
fields respectively require the parameters of the secondary
STUN server.
The Polling Interval drop down list contains the possible time
intervals between referrals to the STUN server.
The Keep-alive interval text field provides the options to select
the time interval (in seconds) for keeping NAT mapping alive.
The value should be in the range of 10 to 300 seconds.
The NAT IP checking interval text field indicates the interval (in
seconds) between the NAT IP checking attempts (used to
distinguish the possible NAT IP address changes and to perform
registration on the new host). The value should be in the range
of 10 to 3600.
Fig. II-56: STUN Parameters page
The NAT Exclusion Table page includes a table where all possible IP ranges are listed that allows you to exclude some network addresses from
being NATed. For example, if a Quadro user needs to make SIP calls within the local network as well as outside of that network, all local IP
addresses are required to be excluded from NAT traversal settings by being listed in this table. Otherwise, a malfunction may occur in SIP
operations.
The NAT Exclusion Table page offers the following input
options:
Each record in the table has a corresponding checkbox
assigned to its row. The checkbox is used to delete or to
edit the corresponding record. Only one record may be
edited at a time. An error message will appear if no
selection is made or more than one is selected.
Each column heading in the table is a link. By clicking on
the column heading, the table will be sorted by the
selected column. When sorting (ascending or
descending), arrows will be displayed next to the column
heading.
The Add Entry page includes the following text fields:
Add opens the Add Entry page where a new IP range
can be added.
Fig. II-57: NAT Exclusion Table page
Edit opens the Edit Entry page where the IP range can be modified. This page includes the same components as the Add Entry page.
The NAT Exclusion Table lists all possible IP ranges that are not included in the NAT process, but may be accessed directly. IP addresses that are
not listed in the NAT Exclusion Table are accessed over NAT.