Users Guide

Table Of Contents
Layer 3 Routing Commands 1650
This command enables both IPv4 and IPv6 multicast routing. Multicast
source data is flooded/forwarded by default in the VLAN on which it is
received. For this reason, multi-access VLANs are not recommended for
multicast routing interfaces.
Example
The following example enables IP multicast on the router.
console#configure
console(config)#ip multicast-routing
Command History
User Guidelines updated in release 6.3.5. User Guidelines updated in release
6.4 release.
ip multicast ttl-threshold
Use the ip multicast ttl-threshold command in Interface VLAN
Configuration mode to apply a
ttlvalue
to a routing interface.
ttlvalue
is the
TTL threshold which is applied to the multicast Data packets forwarded
through the interface.
Syntax
ip multicast ttl-threshold
ttlvalue
no ip multicast ttl-threshold
ttlvalue
— Specifies TTL threshold. (Range: 0-255)
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (VLAN) mode
User Guidelines
This command has no user guidelines.