Multitech MTCMR-E1 Manual de usuario Pagina 62

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Chapter 10 IP AT Commands
62 Universal IP AT Commands Reference Guide
#IPDNSSERV Configure the DNS Server
Description: Enables the DNS server. By default, DNS is enabled. Use this command before using DNS
services.
Syntax: AT#IPDNSSERV
Values: 0 - Disables DNS
1 - Enable DNS
Default: 1
#DNSSERV1 Set DNS Server IP Address
Description: In order to translate the server names from literal format into IP addresses, the TCP/IP stack
software implements the Domain Name System (DNS) protocol. The DNS Server IP address must
be specified for use by the TCP/IP stack software.
Note: The module must be reset to put the command into effect.
Syntax: AT#DNSSERV1="<value>"
AT#DNSSERV1? Read or display the current setting.
Values: 32-bit number in dotted-decimal notation (i.e., xxx.xxx.xxx.xxx).
Default: 202.56.215.6
#DNSSERV2 Set Secondary DNS Server
Description: In order to translate the server names from literal format into IP addresses, the TCP/IP stack
software implements the Domain Name System (DNS) protocol. The DNS Server IP address has
to be specified for use by the TCP/IP stack software. This secondary DNS server is used in the
case where the primary DNS server does not respond to a request.
Note: The Universal IP resolver (DNS Client) has a list that holds up to 4 DNS servers, the first 2
in the list are populated by the #DNSSERV1 and #DNSSERV2 commands, the 3rd and 4th
are populated by DNS information provided by the ISP or cellular carrier. The list is
checked in order (1-4). This means that user configured name servers will be checked
before dynamically assigned name servers.
Syntax: AT#DNSSERV2="<value>"
AT#DNSSERV2? Read or display the current setting.
Values: 32-bit number in dotted-decimal notation (i.e., xxx.xxx.xxx.xxx).
Default: 202.56.230.6
#IPRELEASE Release a DHCP Address Assigned by the Server
Description: In order to gracefully release a DHCP address assigned by the server, the module should issue a
command of DHCPRELEASE.
Syntax: AT#IPRELEASE
Response: AT#IPRELEASE returns OK
#IPRENEW Renew the DHCP Information from the Server
Description: The DHCP client can renew the DHCP information from the server. On completion of lease time,
the DHCP client will automatically renew the DHCP information. Before that, if the client wants
to renew the information, it can use this command.
Syntax: AT#IPRENEW
Response: AT#IPRENEW returns OK
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