MP-202 Telephone Adapter
194
LTRT-50604
MP-202
Table
13-3: Adding a Routing Rule - Parameter Descriptions
Parameter
Description
Device
Select the network device.
Destination
The destination is the destination host, subnet address, network address, or default
route. The destination for a default route is 0.0.0.0.
Netmask
The network mask is used in conjunction with the destination to determine when a
route is used.
Gateway
Enter the Telephone Adapter's IP address.
Metric
A measurement of the preference of a route. Typically, the lowest metric is the most
preferred route. If multiple routes exist to a given destination network, the route with
the lowest metric is used.
Figure
13-23: Routing Rule Settings
13.16.2 Multicasting
The MP-202 provides support for IGMP multicasting, which allows hosts connected to a
network to be updated whenever an important change occurs in the network. A multicast is
simply a message that is sent simultaneously to a pre-defined group of recipients. When
you join a multicast group you will receive all messages addressed to the group, much like
what happens when an e-mail message is sent to a mailing list.
IGMP multicasting enables UPnP capabilities over wireless networks and may also be
useful when connected to the Internet through a router. When an application running on a
computer in the home network sends out a request to join a multicast group the MP-202
intercepts and processes the request. If the MP-202 is set to 'Minimum Security' no further
action is required. However, if the MP-202 is set to 'Typical Security' or 'Maximum Security'
you must add the group's IP address to the MP-202's 'Multicast Groups' screen. This will
allow incoming messages addressed to the group to pass through the Firewall and on to
the correct LAN computer.
1.
Click the 'Routing' icon in the 'Advanced' screen.