MP-20x Telephone Adapter 248 Document #: LTRT-50609
User's Manual
¾ To configure routing protocols:
1. In the 'Routing' screen, configure the desired routing protocols:
• Internet Group Management Protocol (IGMP) section:
a. Select the 'Enabled' check box to enable support for IGMP multicasting.
b. Select the 'Enable IGMP Fast Leave' check box if you want MP-20x to stop
forwarding traffic to a host that is the only subscriber, immediately upon
request (without query delay).
c. Select the 'IGMP Multicast to Unicast' check box to enable MP-20x to
convert the incoming multicast data stream into unicast format to route it to
the specific LAN host that had requested the data. In this way, MP-20x
prevents flooding the rest of the LAN hosts with irrelevant multicast traffic.
• Domain Routing: Select the 'Enabled' check box if you want MP-20x's DNS
server to add a routing entry for the IP address of the reply through the device
from which it arrived, when it receives a reply from an external DNS server. This
means that future packets from this IP address will be routed through the device
from which the reply arrived.
2. Click OK.
14.18 Scheduler Rules
Scheduler rules are used for limiting the activation of Firewall rules to specific time periods,
specified in days of the week, and hours.
¾ To define a Rule:
1. In the 'Advanced' screen, click the Scheduler icon; the 'Scheduler Rules'
screen appears.
Figure 14-48: Advanced - Scheduler Rules
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