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If you use any functions in PicLan-IP that require name lookups, then you must configure the PicLan-IP software to use one or more external Domain Name Servers. This configuration is accomplished in the PLIP.CTRL CONFIG item:
| Parameter | Format | Description | Default | 
| DNS= | IP Address (###.###.###.###) | The IP address of a running Domain Name Server. This may be a local DNS server, or a server at your ISP. You can enter multiple DNS= lines to use more than one DNS server. | none | 
| DNS WAIT= | hh:mm:ss | The amount of time to wait between DNS UDP transmits | 2 seconds | 
| DNS RETRY= | ## | The number of total attempts to perform a DNS query operation | 4 | 
| DNS TIMEOUT= | hh:mm:ss | The total length of time to wait for a DNS query answer | 30 seconds | 
| DNS CLEANUP= | hh:mm:ss | The interval between DNS cache cleanup scans | 1 hour | 
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