Configuring IP Multicast Sessions

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HomePortal 3801HGV Gateway User Guide

Configuring Broadband Settings

Steps

1.

Navigate to

Settings

>

Broadband

>

Routing

. The

Static Routes

page appears.

2.

Enter the IP address of the destination network in the

Subnet IP

text box.

3.

Enter the subnet mask of the destination network in the

Subnet Mask

text box.

4.

Enter the gateway address of the destination network in the

Gateway IP

text box.

5.

Click

Add To List

.

The

Static Route List

section displays the new Subnet IP

, Subnet Mast, Gateway IP

, and Interface

name.

Configuring IP Multicast Sessions

Objective

To configure IP multicast sessions.

Viewing Multicast Statistics

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HomePortal 3801HGV Gateway User Guide

Configuring Broadband Settings

When information is broadcast on a network, information packets are delivered to all segments on

the LAN. This degrades network performance. IP multicasting is a method of forwarding information

to a group of interested receivers.

Internet Group Management Protocol (IGMP) is used to manage IP Multicast sessions. IGMP

provides a means to automatically control and limit the flow of multicast traffic throughout your

network with the use of special multicast queriers and hosts.

Steps

1.

Navigate to

Settings

>

Broadband

>

Multicast

. The

Multicast

page appears.

2.

Select the

IGMP Proxy

check box to enable the

feature. When IGMP Proxy is enabled, the

gateway issues IGMP host messages on behalf of the hosts discovered through standard

IGMP interfaces. In other words, the gateway acts as a proxy for its hosts.

3.

Select the

IGMP Snooping

check box to enable the feature. When IGMP Snooping is

enabled, the gateway analyzes all IGMP packets and selectively forwards multicast traffic

only to those ports where particular IP Multicast streams are accepted.

4.

Select the

IGMP Query Response Interval

check box to enable the feature. When IGMP

Query Response Interval is enabled, you control the number of IGMP messages allowed on

the subnet during the specified duration.

5.

Click

Save

.

Viewing Multicast Statistics

To view multicast statistics, navigate to

Settings

>

Broadband

>

Multicast

. The

Multicast

page

appears.

Viewing Multicast Statistics

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HomePortal 3801HGV Gateway User Guide

Configuring Broadband Settings

Refer to the following table to understand the IGMP parameters listed on the multicast page:

IGMP Parameter

Description

IGMP Interface Name

Name of the interface for which statistics are being reported.

IGMP Enable Query

Displays whether the interface has IGMP querying enabled or disabled.

IGMP Fast Update

Displays whether the interface has IGMP fast update enabled or disabled.

IGMP Version

Displays the IGMP version.

Viewing Multicast Statistics

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HomePortal 3801HGV Gateway User Guide

Configuring Broadband Settings

IGMP Robustness

Time interval that the gateway waits for a report in response to a group-

specific query.

IGMP Query Interval

Time interval at which the gateway sends membership queries when it is the

querier.

IGMP Query Response Interval

Time interval that the gateway waits for a report in response to a general

query.

IGMP Group Membership Interval

Timeout period for group membership. If no report is received for these

groups before the timeout expires, the group membership is removed.

IGMP Startup Query Interval

Amount of time in seconds between successive General Query messages

sent by a querier during startup.

IGMP Startup Query Count

Number of general query messages sent at startup.

IGMP Last Member Query Interval

Time interval that the gateway waits for a report in response to a group-

specific query.

IGMP Last Member Query Count

Number of Group-Specific Query messages sent before the gateway assumes

that there are no members of the host group being queried on this interface.

IGMP Maximum Host Groups

Maximum number of host group members.

IGMP Maximum Sources

Maximum number of source-specific join and leave messages.

IGMP Query Count

Number of membership queries sent and received.

IGMP Framing Errors

Number of frame errors related to ARP

, IP

, and RARP

.

IGMP Invalid Type

Number of times gateway received Invalid IGMP Type message.

IGMP Allocation Failure

Number of times gateway received Allocation Failure messages, such as

memory allocation failure, IP address allocation failure, and so on.

IGMP Host Group Exceeded

Number of times host groups have exceeded in the message.

IGMP Sources Exceeded

Number of times source addresses have exceeded in the message.

IGMP Other Querier

Timeout period for group membership. If no report is received for these

groups before the timeout expires, the group membership is removed.

IGMP Membership Entries

Number of group membership entries on an interface.

IGMP Total Received Messages

Number of total messages received.

IGMP Received Short Messages

Number of short messages received.

IGMP Bad Checksum Messages

Number of messages received with a bad IP checksum.

IGMP Inquiry Messages

Number of membership inquiry messages issued by the gateway.

IGMP Bad Inquiry Messages

Number of membership inquiry messages issued by the gateway that were not

realized by this protocol.

IGMP Report Messages

Number of report messages sent by the host to the members of the querying

group.

IGMP Bad Report Messages

Number of report messages that were sent by the host but were not realized

by the members of that group.

IGMP Own Group Report

Messages

Number of report messages sent by the host to the members of the same

group.

IGMP Transmitted Reports

Total number of IGMP reports transmitted by the gateway.

IGMP Group Entries

Total number of group entries on an interface.

IGMP Cache Entries

Total number of cache entries on an interface.

IGMP Group Interface Name

Interface name of the IGMP group.

IGMP Group Interface Address

IP address of the IGMP group interface.

IGMP Group Interface Reference

Count

Number of processes belonging to the IGMP group interface.

IGMP Parameter

Description

Resolving Domain Name

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HomePortal 3801HGV Gateway User Guide

Configuring Broadband Settings

Resolving Domain Name

Objective

To manually add a domain name for resolving the IP address of the networked devices.

This task allows you to name network devices (such as printers or Web servers), so that they can

be easily accessed by other users on the network.

Note

Confirm that the domain name is not in use.