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19 IP SERVICES
This chapter describes the following IP services:
◆ DNS – Configures default domain names, identifies servers to use for
dynamic lookup, and shows how to configure static entries.
◆ DHCP Relay – Enables DHCP relay service, and defines the servers to
which client requests are forwarded.
◆ DHCP Server – Configures address to be allocated to networks or
specific hosts.
◆ UDP Helper – Configures the switch to forward UDP broadcast packets
originating from host applications to another part of the network.
DOMAIN NAME SERVICE
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
S
ERVICE PARAMETERS
Use the IP Service > DNS - General (Configure Global) page to enable
domain lookup and set the default domain name.
CLI REFERENCES
â—† "ip domain-lookup" on page 970
â—† "ip domain-name" on page 971
COMMAND USAGE
â—† To enable DNS service on this switch, enable domain lookup status, and
configure one or more name servers (see "Configuring a List of Name
Servers" on page 466).
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