Comtech EF Data CDM-570 Installation And Operation Manual page 261

CDM-570/570L Satellite Modem with Optional IP Module
IP Module CLI and Telnet Operation
Menu Options/Fields
CDM-IP as Client:
IGMP Version used for
Unsolicited Reports
CDM-IP as Client:
Force Cisco Router Alert
Option sending V1 reports
Entry
U This parameter defines which version of the IGMP
protocol should be followed when attempting to join a
group on a Multicast Server via an unsolicited report.
IP M
When the
IP M
Queries, the
same version that the server used to initiate the query.
This parameter will assume one of (2) values:
1. V1
2. V2
The value of V1 will configure the
IGMP Version 1 protocol to join a Multicast Group
available on an IGMP Server in response to an IGMP
Query.
The value of V2 will configure the
IGMP Version 2 protocol to join a Multicast Group
available on an IGMP Server in response to an IGMP
Query.
The user can toggle the value of the IGMP Version
used for Unsolicited Reports from 'V1' and 'V2' with
each selection.
A Some Cisco Routers may require the definition of a
Router Alert Option to recognize a report from a Client
to join a Multicast group. The IP Router Alert Option is
defined in RFC2113 and was introduced by Cisco.
While this option is not part of the IGMP standard, most
IGMP V2 implementations contain this option.
However, most implementations of IGMP V1 do not
contain this option. This parameter is defined to
prevent possible conflicts in networks in which a Cisco
Router is configured as an IGMP V1 server.
This parameter can assume one of the following (2)
values:
1. YES
2. NO
If set to YES, the
reports to join Multicast groups as specifically required
by some Cisco Router configurations.
If set to NO, the
to join Multicast groups as defined and implemented by
most IGMP servers.
17–39
Description
odule is configured to Recognize IGMP
odule will respond to a query in the
IP M
IP M
IP M
odule will generate IGMP
IP M
odule will generate IGMP reports
Revision 3
MN/CDM570L.IOM
odule to use the
odule to use the