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Knowledge Base

What is the default IP of Ursalink Industrial Cellular Router?

The default IP of Ursalink Industrial Cellular Router is

What is a dynamic IP address?

In simple terms, it is the opposite of a fixed IP address.
An IP address will be assigned to a machine when it connects to a network. However, when the machine disconnects, it will lose the IP address. It will obtain a new IP address next time when it connects to the network.

How to change the password of the administrator account?

Please go to “System” > “User Management” > “Account” to change the password after you log in the Web GUI.

What is a Private APN?

A Private APN gives customers direct access to their LAN and allows them to specify certain parameters such as the private address space allocated to the devices & RADIUS server attributed for user authentication. You are also able to access the Internet.

What is a Public APN?

Every network provider has a public APN. When the SIM card is enabled for data, e.g. GPRS/3G,etc, the public APN will be added by default. A Public APN is open for everyone to use.

What is a Public IP address?

Public IP addresses are IP addresses that are visible to the public. Because these IP addresses are public, they allow other people to know about and access the device, like a Web server.

What is a VPN tunnel?

A VPN is a private network that uses a public network (usually the Internet) to connect to devices with Private IP addresses from a machine through your LAN or from home. Instead of using a dedicated and real-world connection such as leased line, a VPN uses “virtual” connections routed through the Internet from the company’s private network to the remote device. The VPN tunnel would be used for those who have a private IP address on their SIMs.

What is a site-to-site VPN tunnel?

A site-to-site VPN tunnel is an network environment where two firewalls are used to create a VPN tunnel. By Wireless Logic, we use IPSEC VPN tunnels. We configure a firewall on our side and then send the config parameters to customer. The customer then need to enter the config parameters onto their firewall/router. This would enable any machine(s) on a company’s LAN to connect to its devices with our m2m SIMs and vice versa. This is an always-on VPN connection. To create a site-to-site tunnel, customers need to have a hardware firewall/router which is capable of setting up an IPSEC VPN tunnel.

What is GPRS?

GPRS stands for General Packet Radio Service. It is a wireless technology used by GSM (Global System for Mobile) networks that enables Internet and other data communication. Because it is packet-based, you can stay online for an unlimited amount of time and only data downloading is monitored by this service.

What is GSM?

Global System for Mobile Communications, the second generation digital technology originally developed for Europe, now has in excess of 71 percent of the world market. It is initially developed for operation in the 900MHz band and subsequently modified for the 850, 1800 and 1900MHz bands. GSM used to stand for Groupe Speciale Mobile, a CEPT committee that began the GSM standardization process.


High-Speed Downlink Packet Access (HSDPA) is a new mobile telephony protocol and is sometimes referred to as a 3.5G (or 3½G) technology. HSDPA provides a smooth evolutionary path for Universal Mobile Telecommunications System (UMTS) networks allowing for higher data capacity (up to 14.4 Mbit/s per cell in the downlink and 2 Mbit/s in the uplink per cell). High-Speed Uplink Packet Access (HSUPA) is a 3G mobile telephony protocol in the HSPA family with up-link speeds up to 5.76 Mbit/s.

What is 3G?

3G stands for third generation, a generic wireless industry term for high-speed mobile data delivery over mobileular networks. 3G networks allow users to send and receive bandwidth-intensive information such as video, video conferencing, high quality audio and web data on-demand, virtually anytime and anywhere.

What is 4G?

4G is a mobile phone network using the Internet with speeds five times faster than 3G. It is suited to more volume data applications.

What is Modbus?

Modbus is a serial communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Modbus has become a defacto standard communication protocol and is now a commonly available means of connecting industrial electronic devices.

What is IoT?

The Internet of Things (IoT) is the network of physical devices, vehicles, home appliances and other items embedded with electronics, software, sensors, actuators, and connectivity which enables these things to connect and exchange data, creating opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits and reduced human intervention.
“IoT devices represent 2% of the world’s data today. By 2020, that number will grow to 32 billion – representing 10% of the world’s data.”——EMC/IDC: Digital Universe (Free – 4/2014)

What is IPv6?

IPV6 public launch on 2011, IPv6 intended to replace IPv4.
The new protocol allows for 2128 (approximately 340 undecillion or 340,282,366,920,938,463,463,374,607,431,768,211,456) addresses or as Steven Leibson put it, “we could assign an IPV6 address to every atom on the surface of the earth, and still have enough addresses left to do another 100+ earths.”

What is VPN?

A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. Applications running across a VPN may therefore benefit from the functionality, security, and management of the private network.

How to setup your own OpenVPN on Windows?

View the application notes: How to Setup Your Own OpenVPN on Windows

How to establish OpenVPN connection with Ursalink?

View the application notes: How to Establish OpenVPN Connection with Ursalink