IP Configuration
Domain Name
Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3 338
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• Source—Source of the server’s IP address (static or DHCPv4 or DHCPv6)
for this domain.
• Interface—Interface of the server’s IP address for this domain.
• Preference—This is the 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.
Host Mapping
Host name/IP address mappings are stored in the Host Mapping Table (DNS
cache).
This cache can contain the following type of entries:
• Static Entries—These are mapping pairs that were manually added to the
cache. There can be up to 64 static entries.
• Dynamic Entries—These are mapping pairs that were either added by the
system as a result of being used by the user, or and an entry for each IP
address configured on the device by DHCP. There can be 256 dynamic
entries.
Name resolution always begins by checking static entries, continues by checking
the dynamic entries, and ends by sending requests to the external DNS server.
Eight IP addresses are supported per DNS server per host name.
To add a host name and its IP address:
STEP 1 Click IP Configuration > Domain Name System > Host Mapping.
STEP 2 You can select a Clear Table option to clear some or all of the entries in the Host
Mapping Table.
• Static Only—Deletes the static hosts.
• Dynamic Only—Deletes the dynamic hosts.
• All Dynamic & Static—Deletes the static and dynamic hosts.
The Host Mapping Table displays the following fields:
• Host Name—User-defined host name or fully-qualified name.
• IP Address—The host IP address.
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