Quadro4Li Manual II: Administrator's Guide
Administrator’s Menus
Quadro4Li; (SW Version 5.3.x)
77
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-137: 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-138: 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.
IP address
requires the IP address that is placed behind NAT within
the local network.
Subnet Mask
requires the subnet mask corresponding to the
specified IP address.
Fig. II-139: NAT Exclusion Table - Add Entry page
To Configure the NAT Exclusion Table
1.
Press the
Add
button on the
NAT Exclusion Table
page. The
Add Entry
page will appear in the browser window.
2.
Specify an
IP Address
and its
Subnet Mask
in the corresponding text fields.
3.
Press
Save
on the
Add Entry
page to add the selected IP range to the
NAT Exclusion Table
list.
