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190 CHAPTER 2: CUDA 12000 BASE SYSTEM COMMANDS
Example 1
In this example, the user configures interface 1/1/1 to act as an IGMP proxy for the multicast
group 225.4.3.4:
cli:root# ip igmp proxy 225.4.3.4 255.255.255.255 metric 3 1/1/1
cli:root#
Example 2
In this example, the user configures two interfaces to act as proxies. Each interface acts as a
proxy for a range of multicast groups. One interface acts as a proxy for all multicast groups in
the range 225.4.3.0 to 225.4.3.255. The other interface acts as a proxy for all multicast
groups in the range 225.4.0.0 to 225.4.255.255:
cli:192.168.208.3:root# ip igmp proxy 225.4.3.0 255.255.255.0 metric 1 1/1
cli:192.168.208.3:root# ip igmp proxy 225.4.0.0 255.255.0.0 metric 1 1/2/1
Notice that the two ranges overlap, and that the range 225.4.3.0 to 225.4.3.255 is more
specific than the other range. By taking this approach, the user guarantees that a more
specific route takes precedence over a less specific route. For example, the Cuda 12000
proxies multicast packets addressed to 225.4.3.1 on interface 1/1/1; however, the Cuda
12000 would proxy a multicast packet addressed to 225.4.5.1 on interface 1/2/1.
Related Commands
■ no ip igmp proxy on page 273
■ show ip {mroute | igmp} on page 439