Specifications

Open CTM (Revision D)

Command Reference

Configures the modem for "half bridge mode"

This command is used to provide the connected device, such as a laptop the same IP address that is

assigned to the modem.

This command is useful for application software that requires a specific IP address to operate properly.

n = 0 modem mode off (default)

n = 1 modem mode on

The current modem mode can be queried by entering modemmode without parameters.

For modemmode to take effect, a cmd save and a power cycle is required.

Notes (all versions):

In modem mode, remote web interface, remote ssh/telnet on the modem are not available.

This feature should not be used with other modem features.

Notes (applicable to OpenCTM firmware only):

For a static IP configuration, the client computer's Ethernet settings must be configured to use

the WAN IP address, Gateway IP address, and DNS addresses of the phone card/module. If the

modem has an active wireless connection, obtain these addresses from output displayed by using

cmd syslog.

For a dynamic IP configuration, the modem must also be configured using modemmodedhcp and

clientmac commands in addition to using cmd modemmode.

For modems configured in half bridge mode and using later model Sierra Wireless data devices

that support A-GPS (USB598, USB597), A-GPS support is not available and must be disabled. Refer

to agpspde for details on disabling the A-GPS feature.

Notes (applicable to Snapgear firmware only):

This feature also requires a phone card/module that is configured to acquire a static IP address

from the wireless carrier.

modemmode does not support WAN IP addresses that have either a xxx.xxx.xxx.0 or

xxx.xxx.xxx.255 as part of their IP address

On the connected device, a DHCP release, a DHCP renew, and a power cycle may need to be

performed for it to acquire the modem's IP address.

Examples:

cmd modemmode 1 enable modem mode

cmd modemmode queries the current modem mode setting

See also: agpspde, clientmac, modemmodedhcp

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