IP Configuration
Configuring Domain Name System
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 185
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Viewing Static and Dynamic DNS Servers
The search list contains one static domain name defined by the user and dynamic
domain names received from DHCPv4 and DHCPv6 servers.
To view the domain names that have been configured on the switch, click IP
Configuration > Domain Name System > Search List.
The following fields are displayed:
• Source—Source of the server’s IP address (static or DHCPv4 or DHCPv6)
for this domain.
• Preference—Order in which the domains are used (from low to high). This
effectively determines the order in which unqualified names are completed
during DNS queries.
• Domain Name—Name of domain that can be used on the switch.
Configuring Host Mapping
Host name and IP address mappings are stored in the Host Mapping Table (DNS
cache).
This cache contains the static entries (mapping pairs) that are manually added to
the cache.
Name resolution always begins by checking static entries, and continues by
sending requests to the external DNS server.
Up to eight IP addresses can be mapped to a host, but at present only the first IP-
address-to-host mapping is applicable.
To add a host mapping:
STEP 1 Click IP Configuration > Domain Name System > Host Mapping.
The following fields are displayed:
• Host Name—User-defined host name or fully-qualified name.
• IP Address—The host IP address.
• IP Version—IP version of the host IP address.
• Type—Static entry to the cache.
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