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ENHANCED IP STACK AT COMMANDS

145 AT Commands for EV-DO-EV3 Modems

Enhanced IP Stack Extension AT Commands

Query DNS #QDNS

Execute command executes a DNS query to resolve the host name into an IP address.

Test command returns the OK result code.

Syntax

Command Command type

AT#QDNS=[<host name>] Execute

AT#QDNS=? Test

Parameters and Values

<host name> String type, host name.

If the DNS query is successful, the IP address is reported in the result code, as

follows:

#QDNS: <host name>,<IP address>

where:

<host name> - string type.

<IP address> - string type, in the format “xxx.xxx.xxx.xxx”.

Notes

 If the CDMA context was not activated previously, this command activates the context, perform the DNS

query, and deactivate the CDMA context.

 Requires correct settings for authentication parameters and the CDMA network must be present.

Example

AT#QDNS=google.com

#QDNS: "google.com","74.125.227.100"

DNS Response Caching #CACHEDNS

Set command enables caching a mapping of domain names to IP addresses, as does a resolver library.

Read command reports whether the DNS Response Caching is currently enabled or not, in the format:

#CACHEDNS: <mode>

Test command returns the currently cached mapping along with the range of available values for parameter

<mode>, in the format:

#CACHEDNS: [<hostn1>,<IPaddr1>,[…,[<hostnn>,<IPaddrn>,]]](0,1)

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Multitech CDMA Betriebsanweisung Seite 145