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ONFIGURING
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OMAIN
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AME
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ERVICE
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CLI – This example assigns a multicast address to VLAN 1, and then
displays all the known multicast services supported on VLAN 1.
Configuring Domain Name Service
The Domain Naming System (DNS) service on this switch allows host
names to be mapped to IP addresses using static table entries or by
redirection to other name servers on the network. When a client device
designates this switch as a DNS server, the client will attempt to resolve
host names into IP addresses by forwarding DNS queries to the switch,
and waiting for a response.
You can manually configure entries in the DNS table used for mapping
domain names to IP addresses, configure default domain names, or specify
one or more name servers to use for domain name to address translation.
Configuring General DNS Server Parameters
Command Usage
• To enable DNS service on this switch, first configure one or more name
servers, and then enable domain lookup status.
• To append domain names to incomplete host names received from a
DNS client (i.e., not formatted with dotted notation), you can specify a
default domain name or a list of domain names to be tried in sequential
order.
• If there is no domain list, the default domain name is used. If there is a
domain list, the default domain name is not used.
Console(config)#ip igmp snooping vlan 1 static 224.1.1.12
ethernet 1/12 4-297
Console(config)#exit
Console#show mac-address-table multicast vlan 1 4-299
VLAN M'cast IP addr. Member ports Type
---- --------------- ------------ -------
1 224.1.1.12 Eth1/12 USER
1 224.1.2.3 Eth1/12 IGMP