Wireless(Wifi); Dhcp Server; Dial-Up Networking (Dun) Over Serial; Figure 10 - Sample Modem Configuration For Communicating With A Device That Has The Ip 10.127.0.17 - red lion BT-6821-AT-AC User Manual

modem's IP lies in the same subnet as the device. Navigate to CONF (Modem Configuration) > LAN IP and change the
parameters under Ethernet or USB.
Figure 10 – Sample modem configuration for communicating with a device that has the IP 10.127.0.17
5.3

Wireless(WiFi)

All configuration of the integrated Wi-Fi feature in the BT-5x30 is done via AT commands only. For configuration of this
feature please refer to the separate AT Command Reference, available at
5.4

DHCP server

As mentioned above, the modem has a DHCP server which automatically assigns an IP to the attached device. If an
Ethernet hub or switch is connected to the modem's Ethernet port, the modem will assign an IP address to each device
connected to the hub or switch, for a maximum of 254 devices, provided the devices are configured as DHCP clients
("Dynamic" or "Automatic" IP configuration). The DHCP server can be configured or turned off in CONF (Modem
Configuration) > LAN IP as shown above.
5.5

Dial-up Networking (DUN) over serial

Note:
Regardless of the modem type, using a serial cable will cap the bandwidth at 115200 kbps. The serial port will be a
bottleneck in terms of performance, as it will reduce the data throughput considerably to less than 3% of its maximum
potential. Whenever possible, use an Ethernet or USB connection to take full advantage of throughput.
Some terminals do not have RJ45 Ethernet or USB connectors and require using a DB9 RS232 standard serial connector
to interface with the modem.

If the attached device is not programmable (smart), then you cannot use DUN, and will have to use the Serial IP
feature to communicate with the device. Refer to the

If the modem will be used with a programmable device that can make PPP connections, then refer to that device's
documentation to create the dial-up session. The phone number to dial will be the same as the one programmed
in the Dial String of the WAN setup. The username and password, if any, will be those provided by your cellular
service provider.

If the modem is used with a PC making a PPP connection, then a standard modem driver on the COM port to which
the modem is physically connected must be installed, and then a dial-up connection running on that driver must be
created. This dial-up connection will dial the modem so that a PPP session is established between modem and PC.
Meanwhile, the modem will make a PPP session of its own to connect to the network. For a walkthrough on
creating a DUN connection in Windows, refer to the
http://support.sixnet.com
Serial IP section for details.
Dial-Up Networking in Windows appendix.