IP Management AT Commands#

This section describes AT commands for DHCP and static IP configuration.

Commands#

• net-dhcp-conf

• net-conf-ip

net-dhcp-conf#

Configure the DHCP retry interval and retry count settings to use during DHCP IPv4 configuration.

Command Format#

at+net-dhcp-conf=<min-discover-retry-interval>,<max-discover-retry-interval>,<min-request-retry-interval>,<max-request-retry-interval>,<max-discover-retries>,<max-request-retries>

Related SDK API#

sl_net_dhcp_configuration_t

Pre-conditions#

• net-up

Parameters#

min-discover-retry-interval#

The minimum interval (in seconds) at which to retry discovery during DHCP IPv4 configuration.

max-discover-retry-interval#

The maximum interval (in seconds) at which to retry discovery during DHCP IPv4 configuration.

min-request-retry-interval#

The minimum interval (in seconds) at which to retry the IP request during DHCP IPv4 configuration.

max-request-retry-interval#

The maximum interval (in seconds) at which to retry the IP request during DHCP IPv4 configuration.

max-discover-retries#

The maximum number of retries to perform for discovery during DHCP IPv4 configuration.

max-request-retries#

The maximum number of retries to perform for the IP request during DHCP IPv4 configuration.

Response#

• OK on success

• ERROR 0x0001 in case of failure

Notes#

• This command is optional. If you do not set these configuration values, they use default values.

• The net-conf-ip command uses the configurations set with the net-dhcp-conf command.

Examples#

at+net-dhcp-conf=100,200,200,400,2,3

net-conf-ip#

Performs IP address configuration for a connected SiWx91x device.

Command Format#

at+net-conf-ip=<interface>,<mode>,<type>,<host-name>,<ipv4-address>,<ipv4-gateway>,<ipv4-netmask>,<ipv6-link-local-address>,<ipv6-global-address>,<ipv6-gateway>,<timeout>

Related SDK API#

sl_net_configure_ip

Pre-conditions#

• net-up

Parameters#

interface#

The network interface for which IP configuration is to be performed. This is a numeric value corresponding to one of the values of the enum sl_net_interface_t. Some enum values may not be supported; refer to the linked documentation for details.

Note: The enum values of sl_net_interface_t are not in the default numerical order of an enum. See sl_net_constants.h for the actual numeric values in this enum.

mode#

The method to be used for IP configuration (for example, DHCP). Contains a numeric value that corresponds to one of the values of the enum sl_net_ip_management_t in the file sl_ip_types.h.

type#

The type of IP address to be configured (for example, IPv4). Contains a numeric value that corresponds to one of the values of the enum sl_ip_address_type_t in the file sl_ip_types.h. You can combine multiple values by using a bitwise or (|) operator (for example, (1<<2) | (1<<3) (= 12) specifies both IPv4 and IPv6 address configurations).

host-name#

Optional. A string specifying the network host name to be set for the SiWx91x device. Set to an empty value if a host name is not specified.

ipv4-address#

Specified if the type bitmap includes IPv4 configuration and mode is set to static. The static IPv4 address to be configured for the SiWx91x device.

ipv4-gateway#

Specified if the type bitmap includes IPv4 configuration and mode is set to static. The static IPv4 gateway address to be configured for the SiWx91x device.

ipv4-netmask#

Specified if the type bitmap includes IPv4 configuration and mode is set to static. The static IPv4 subnet mask to be configured for the SiWx91x device.

ipv6-link-local-address#

Reserved for future use (currently not supported). Specified if the type bitmap includes IPv6 configuration and mode is set to static. The static IPv6 link-local address to be configured for the SiWx91x device.

ipv6-global-address#

Specified if the type bitmap includes IPv6 configuration and mode is set to static. The static IPv6 global address to be configured for the SiWx91x device.

ipv6-gateway#

Specified if the type bitmap includes IPv6 configuration and mode is set to static. The static IPv6 gateway address to be configured for the SiWx91x device.

timeout#

The amount of time in milliseconds after which the IP address configuration is aborted.

Response#

• OK on success

• ERROR <error code> in case of failure. Possible error codes are same as those returned by the sl_net_configure_ip API.

Examples#

// Perform IPv4 configuration using DHCP for the Wi-Fi client interface with timeout of 60 seconds
at+net-conf-ip=8,2,4,,,,,,,60000