Chapter 12: Multicast Routing Configuration Guide
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DIGITAL GIGAswitch/Router User Reference Manual
Configuring IGMP Response Wait Time
You can configure the GSR with a wait time for IGMP Host Membership responses which
is different from the default. The wait time you set then applies to all ports on the GSR.
The default response time is 10 seconds.
To configure the host response wait time, enter the following command in Configure
mode:
Configuring Per-Interface Control of IGMP Membership
You can configure the GSR to control IGMP membership on a per-interface basis. An
interface can be configured to be allowed or not allowed membership to a particular
group.
To configure the per-interface membership control, enter the following commands in
Configure mode:
Configuring DVMRP
You configure DVMRP routing on the GSR by performing the following DVMRP-
configuration tasks:
•
Creating IP interfaces
•
Setting global parameters that will be used for all the interfaces on which DVMRP is
enabled
•
Configuring DVMRP on individual interfaces. You do so by enabling and disabling
DVMRP on interfaces and then setting DVMRP parameters on the interfaces on which
DVMRP is disabled
•
Defining DVMRP tunnels, which IP uses to send multicast traffic between two end
points
Configure the IGMP host response
wait time.
igmp set responsetime
<num>
Allow a host group membership to
a specific group.
igmp set interface
<ip-addr>
allowed-groups
<ip-addr/subnet mask>
Disallow a host group member-
ship to a specific group.
igmp set interface
<ip-addr>
not-allowed-
groups
<ip-addr/subnet mask>