Cisco ME 3400 Software Configuration Manual page 966

Configuring IP Multicast Routing
Configuring Static SSM Mapping
Beginning in privileged EXEC mode, follow these steps to configure static SSM mapping:
Command
Step 1 configure terminal
Step 2 ip igmp ssm-map enable
Step 3
no ip igmp ssm-map query dns
Step 4
ip igmp ssm-map static access-list
source-address
Step 5
Repeat Step 4 to configure additional
static SSM mappings, if required.
Step 6
end
Step 7 show running-config
Step 8 copy running-config startup-config
Go to this URL to see SSM mapping configuration examples:
http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801a6d6f.
html
Configuring DNS-Based SSM Mapping
To configure DNS-based SSM mapping, you need to create a DNS server zone or add records to an
existing zone. If the routers that are using DNS-based SSM mapping are also using DNS for other
purposes, you should use a normally configured DNS server. If DNS-based SSM mapping is the only
DNS implementation being used on the router, you can configure a false DNS setup with an empty root
zone or a root zone that points back to itself.
Beginning in privileged EXEC mode, follow these steps to configure DNS-based SSM mapping:
Command
Step 1
configure terminal
Step 2 ip igmp ssm-map enable
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
42-20
Purpose
Enter global configuration mode.
Enable SSM mapping for groups in the configured SSM range.
By default, this command enables DNS-based SSM mapping.
Note
(Optional) Disable DNS-based SSM mapping.
Note Disable DNS-based SSM mapping if you only want to rely on
static SSM mapping. By default, the ip igmp ssm-map global
configuration command enables DNS-based SSM mapping.
Configure static SSM mapping.
The ACL supplied for access-list defines the groups to be mapped to the
source IP address entered for the source-address.
Note You can configure additional static SSM mappings. If additional
SSM mappings are configured and the router receives an
IGMPv1 or IGMPv2 membership report for a group in the SSM
range, the switch determines the source addresses associated
with the group by using each configured ip igmp ssm-map
static command. The switch associates up to 20 sources per
group.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Enable SSM mapping for groups in a configured SSM range.
Chapter 42 Configuring IP Multicast Routing
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