3.9 Other Useful Functions

2N^® SmartCom PRO as Router

The device can be used for access to the data network. This function is only available in the versions equipped with an Ethernet connector. Set the main route to the data network via GSM and connect the device to the network or the machine to be connected to the data network. Set 2N^® SmartCom PRO address as the default gateway and use any available public DNS (mediated by Google at 8.8.8.8., e.g.) as the DNS server.

2N^® SmartCom PRO is used for low data flows as the GPRS technology does not provide high-rate Internet connection. However, it can be a useful backup for power outage.

IP Address Access Authorisation

The commands below help you define 5 IP addresses authorised for connection to your terminal. All incoming calls from undefined addresses will be ignored.

at^sccfg="auth_ip",1

• The command enables/disables IP address access authorisation.

at^scipauth="add","54.182.153.21"

• The command adds an IP address to the end of the list. When the maximum count of IP addresses is reached, the command will be rejected.

at^scipauth="remove",1-5

• The command deletes one IP address from the list. Select 1 to 5 to define the address position.

at^scipauth="clear"

• The command deletes all the addresses listed.

at^scipauth?

• The command writes out the IP address list.

SCIPAUTH: 1> "90.182.112.54"
SCIPAUTH: 2> "90.182.112.5

at^scipauth=?

• The command displays the interface setting options.

SCIPAUTH: "ADD","15"
SCIPAUTH: "REMOVE",1-5
SCIPAUTH: "CLEAR"

Port Forwarding

The commands below help you define 10 port forwarding rules for WAN (GSM/UMTS/LTE) - LAN communication. First select the protocol (TCP/UDP) to be used and the port to receive WWAN communication. Then define the IP address and LAN port to which communication shall be forwarded.

at^scpfwd?

• The command writes out the list of set rules.

  ^SCPFWD: 1> "TCP",7008,"10.0.25.185",7008

at^scipauth="add","<protocol>",<wan_port>,"<lan_ip_address>",<lan_port>

• This command adds a rule to the end of the list. When the maximum count of IP addresses is reached, the command will be rejected.
  • <protocol> – communication protocol name – TCP or UDP
  • <wan_port> – TCP/UDP port number for the service on the WAN port for which forwarding is made
    • numeric format (number) 1–65535
  • <lan_ip_address> – LAN IP address of the machine to which the service is to be forwarded
  • <lan_port> – TCP/UDP port number for the service in the LAN machine to which the service is to be forwarded
    • numeric format (number) 1–65535

at^scipauth="remove",1-10

• The command deletes one rule from the list. Select 1–10 to define the rule position to be deleted.

at^scipauth="clear"

• The command deletes all the rules on the list.

at^scipauth=?

• The command displays the interface setting options.

SCIPAUTH: "ADD","3",0-65535,"7-15",0-65535
SCIPAUTH: "REMOVE",1-10
SCIPAUTH: "CLEAR"

Configuration Port Control

Communication via port RS-232 is used for configuration. Switch the port to the command mode to start configuring and back to the transparent mode when you have finished to make the port resend the right data. Use the commands below to control the port, set the default modes, reject incoming connections and use authorisation.

+++

• The command switches the port into the command mode.

ato

• The command switches the port into the transparent mode.

ata

• The command switches the port into the transparent mode whenever an incoming TCP connection is ringing.

ath

• The command terminates (rejects) an incoming TCP ringing. 

ats0?

• The command displays the automatic answering settings for incoming calls.
  
  • 0 – means that incoming calls are ignored and answered manually via the ata command.
  • Digit – count of rings after which the incoming connection is answered automatically.

ats0=5

• The command sets the count of rings before automatic answer to 5. After the 5th incoming ring, the port is switched to the transparent mode automatically.

at^sc232at=1

• The command sets the AT mode upon power up.
  • 0 – disabled – the port is in the DATA mode upon power up.
  • 1 – enabled – the port is in the CMD mode upon power up.

at^sc232at?

• The command displays the automatic AT mode switching setting.

at^sc232at=?

• The command displays the automatic AT mode switching setting options.

at^sc232lock=0-1

• The command sets RS 232 authorisation, which means that a password is required for connection via this port: 0 = disabled, 1 = enabled.

at^sc232lock?

• The command displays the current RS 232 lock setting.

at^sc232lock=?

• The command displays the RS 232 lock setting options.