Specifications

Open CTM (Revision D)

Command Reference

If any of the modem's remote configuration features are enabled (cmd rmttelnet, cmd rmtssh (R1.3.X

and above), or cmd rmtweb), the DMZ feature will forward the enabled remote access (Telnet, SSH, or

HTTP) traffic to the modem and forward all other traffic to the DMZ device.

iii.iii.iii.iii = 0.0.0.0 to 255.255.255.255 local IP address of device that all packets are forwarded to

(default: 0.0.0.0, which disables the DMZ feature)

Examples:

1. Set up all traffic to be forwarded to a device at 192.168.1.20, except remote Web configuration (TCP

port 80) traffic and remote SSH (TCP port 22) traffic that are forwarded to the modem

cmd rmtweb 1

cmd rmtssh 1

cmd dmz 192.168.1.20

2. Set up all traffic to be forwarded to a device at 192.168.1.20 including remote Telnet (TCP port 23)

traffic, remote SSH (TCP port 22) traffic, and remote Web configuration (TCP port 80) traffic

cmd dmz 192.168.1.20

3. Disable the DMZ feature

cmd dmz 0.0.0.0

4. Query the current DMZ configuration

cmd dmz

cmd dmz 192.168.1.20

A cmd apply followed by a cmd save are required for this command to take effect.

return to list of commands

dnscheck x

This command is used to enable or disable the CTM-15X modem from checking for valid DNS IP addresses

obtained from the carrier when it connects to the network. If the DNS IP addresses are invalid, the

modem will disconnect the current network connection and reconnect.