D-Link DGS-1510-28X User Manual - Page 225
Command Default Level, Usage Guideline, Example, 3 ip dns lookup, Parameters, Default, Command Mode
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DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide Command Default Level Level: 12. Usage Guideline The system supports the DNS caching name server function. When the caching name server function is enabled and IP domain-lookup, the system forwards the DNS query packet to the configured name server. The answer replied by the name server will be cached and used to answer the subsequent queries. Example This example shows how to enable the DNS caching name server function. Switch# configure terminal Switch(config)# ip dns server Switch(config)# 24-3 ip dns lookup This command is used to enable DNS searching dynamic cached or static created host entries. Use the no form of this command to disable DNS searching dynamic or static host entries. ip dns lookup [static] [cache] no ip dns lookup [static] [cache] Parameters static cache (Optional) Specifies to enable or disable the lookup of static entries before asking the name server. (Optional) Specifies to enable or disable the lookup of the dynamic cache before asking the name server. Default By default, both the static and cache options are enabled. Command Mode Global Configuration Mode. Command Default Level Level: 12. Usage Guideline When the system tries to lookup a domain name, by default, it will look in the static and dynamic cache first and then send a query to the name server if no matching entries were found. Use this command to disable the lookup option of static or dynamic cache entries before sending requests to the name server. If this command is used without options, then the static and cache options are enabled or disabled at the same time. Example This example shows how to enable the lookup of a static host for answering the request. 222
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