SIP User's Manual
6
.
Configuring
the MediaPack
Version 2.4
159
June 2008
6.3.1.1 IP Interfaces
The
IP Interfaces
option allows you to configure the LAN and WAN interfaces.
Dynamic Host Configuration Protocol (DHCP) can be enabled on the WAN interface using
the 'IP Interfaces' screen or 'Quick Setup' screen (refer to '
985H1045H
Quick Setup
' on page
986H1046H
66
). The
MediaPack can use DHCP on its WAN interface to automatically obtain the following
networking parameters after it is reset:
IP address and subnet mask:
mandatory parameters that are sent to the MediaPack
every time a DHCP process occurs.
Default gateway IP address:
optional parameter that is sent to the MediaPack only if
configured in the DHCP server.
DNS server IP address (primary and secondary):
optional parameters that contain
the address of valid DNS servers.
When the gateway is configured to use DHCP, it attempts to contact the enterprise’s DHCP
server to obtain the networking parameters. These network parameters have a ‘time limit’
after which the gateway ‘renews’ its lease from the DHCP server.
It the gateway is configured to use a static IP address, the default gateway must be
configured manually. For a detailed description on configuring the default gateway, refer to
Section '
987H1047H
Static Routes
' on page
988H1048H
105
.
Note:
If the DHCP server denies the use of the gateway's current IP address and
specifies a different IP address (according to RFC 1541), the gateway must
change its networking parameters. If this happens while calls are in
progress, they are not automatically rerouted to the new network address
(since this function is beyond the scope of a VoIP gateway). Therefore, you
are recommended to configure DHCP servers to allow renewal of IP
addresses.
¾
To configure the IP interfaces parameters:
1.
Open the ‘IP Interfaces' screen (
Advanced Configuration
menu >
Network Settings
>
IP Interfaces
option).
Figure
6-19: IP Interfaces Screen
2.
Configure the IP interfaces according to
989H1049H
Table
6-17
.
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