Private IPs have had a little history associated with them. The idea of private IP addresses like 192.168.100.1 did not initially strike those associated with the early roots of Internet and networking. The focus used to be on giving unique IP addresses to all manufactured networking components as the envisioned purpose was to meet the needs of global connectivity. However, it was soon realized that not all computers were intended to be a part of the global web of Internet. Hence, private IPs were used with an aim to make better use of the limited range of IPv4 addresses. Hence, a range of IPs was explicitly restricted for use as private addresses. The range was decided by IANA and accommodated as many as 65536 addresses between 192.168.0.0 and 192.168.255.255. Obviously, 192.168.100.1 falls in this range and hence qualifies as a private IP address.

IP addresses like 192.168.100.1 and other private IPs have some unique features which separate them from the other IPs. Being private, they are used in networks that are not set with the intentions of encompassing the whole of the world. This means that there can be hundreds and thousands of networking devices that use the same value of the IP address. This can certainly not be the case for even a couple of computers belonging to the biggest network called Internet. With same names, they would lose the uniqueness of identity and would hence cause network clashes. Private IPs, on the other hand, do not suffer from such problems as the recurring use of the same value of the IP address is distributed over an equal number of devices, each being a part of a separate and independent network. Also, their distinctive feature means that IP addresses like 192.168.100.1 do not need to be co-ordinated with any IP registry. Consequently, 192.168.100.1 is used as the default IP address with the devices of a considerable number of networking equipment manufacturers. Apart from the above mentioned range of IPs, the ones falling between 10.0.0.0 and 10.255.255.255, and 172.16.0.0 and 172.31.255.255 also qualify as private IPs.

Routers from a host of manufacturers come with 192.168.100.1 as the default IP. Among these feature Arris, Cisco and Motorola. Arris TM502G router and Cisco 815 router use 192.168.100.1 as the default IP. ‘Default’ here means that when these devices get made in the factories, they are assigned the IP address of 192.168.100.1. When you bring such a router home or to the office, you use the default IP in the form of a web address in the address bar of your browser and access its administrative console. Before that, you will need to connect the router to a PC through Ethernet. Once you hit the Enter key after doing the above mentioned, you are prompted for login credentials. Routers come with their default login details. For instance, the devices manufactured by Ambit, and using 192.168.100.1 as the default IP address have a default username of admin and a default password of ‘password’. Likewise, there are different login credentials for different devices using 192.168.100.1 as their default IP. One can easily find these default login credentials by checking on the World Wide Web or contacting the customer service departments of the manufacturer. The fact that 192.168.100.1 is only used in private networks does not mean that the computer terminals of such a network can’t connect to the Internet. A Network Address Translation procedure enables the connection of private networks with the global Internet.

Network administrators and engineers have the liberty of assigning 192.168.100.1 as the IP address to any router in a home network, even if it is not the default set IP. Conversely, a router coming with 192.168.100.1 as the default IP can get a different IP as well, and this is done through the set up page of the router. The manufacturers that include 192.168.100.1 as the default IP in their equipments are counted among the more prominent faces in the networking equipment market, and hence, it is essential for upcoming and practicing networking engineers to learn the tricks of the trade as far as 192.168.100.1 is concerned.

Broadband router makers ensure that the users of their devices have a really simple procedure to follow for being able to setup and configure the devices. The requirements for doing so are a computer terminal that has already been connected to the router through Ethernet, a web browser and the login credentials to access the set up page. The procedure is as simple as opening a web page and entering login details. The address bar is fed with the IP address of the router (which is the default IP). A Netopia / Cayman Internet gateway will require you to enter http://192.168.1.254 and then enter the login credentials. Most often, the username is left blank and the password used is ‘admin.’ Like the default IP address, these devices carry the default login credentials. Of course, you have the option of changing these. If, however, you forget the newly set login credentials, you can use the hardware reset button, and all settings change to default, including the IP address and the login details.

IP addresses that are used as default in networking devices come from a range of IPs reserved by IANA (Internet Assigned Numbers Authority) for use in private networks. Hence the IPv4 address of 192.168.1.254 is also known as a private IP. Such IPs can be used by a single device in every private network, without there being any conflict in the devices. However, a single network can’t use multiple instances of this IP. IP addresses are limited, and hence, it makes a lot of sense to have an exclusive range of IPs that can be used only for private networks and can hence be used several times.

Disrupted networks are a real pain for companies and their offices. Thus, it becomes important that the people entrusted with the responsibility of handling such issues know what all can go wrong with the router residing on the IP address of 192.168.1.254. Some useful tips discussed here can help in troubleshooting. The good old technique of resetting the router can actually do the job for you, so begin with this. See if you are able to Telnet to the router. Sometimes, the computer Firewall can cause blockage, so check there. You would also do well to jot down the changes you make to your router’s administrative console every time, so that in times of trouble you have a ready reference to check whether the settings are not causing any disruptions.

Of course, there is a chance that you typed in the wrong address, or are still trying with the default IP despite having changed it at some point. If all these little checks do not yield any result, you will have to check the wiring between the computer and the router. Also confirm that the connectors on cables are perfectly done. Sometimes, it makes sense to attempt at accessing the router from another computer. If you succeed in doing so, you can be sure that there is a fault with the computer and not the router. Resetting the computer or even the Local Area Network can also be an alternative for you. Plus, you can check if the switches in the network are all in good shape. Generally, you would be able to identify the cause of the problem by following all the above mentioned troubleshooting tricks. However, if the problem persists even after you have exhausted all of the above, you would be served well by taking the help of a professional to get the problem solved.

When you bring home a router from Belkin or SMC, you will need to know the default IP address of the router to be able to perform vital router management functions that are accessible from the router setup page. And to reach this router setup page, you will need a web browser in your computer. And before that, you will need to establish a link between the router and the computer from where you will execute the administrative changes. This is done by using Ethernet. Now, coming back to the computer’s web browser, you will need to enter the default IP address of the router in the format of a webpage. For instance, for a router that uses 192.168.2.1 as the default address, the input to the address bar of the browser would have to be http://192.168.2.1/. You will then need to enter the login credentials in the prompt box that comes as soon as you hit Enter after entering the above mentioned IP address. You can find the default login credentials from the customer service department of the manufacturer.

The point to point protocol is set up through the router configuration panel, or the administration console of the router discussed above. PPPoE is an important aspect of network engineering and architecture, and this necessitates that people in this industry know about 192.168.2.1. Other similar set ups like PPPoA, i.e. Point to Point Protocol over ATM, and Mac Access Control are done through the same procedure. In this manner, the administrative console becomes the life and blood of activities that you need the router to accomplish.

For routers with a Belkin or SMC make, network engineers instantly know that the default IP address would be 192.168.2.1. Even some other manufacturers of routers use the same address as the default IP. However, if you are stuck with a router whose default IP is not known to you, you can easily Google for the same by keying in the model number and the name of the manufacturer. The default IPv4 address we have been talking about does not always have to be used as the address to call the router. In fact, once you have access to the set up console, you can change the IP address associated with the router. 192.168.2.1, as many network engineers would instantly recognize, belongs to a group of IP addresses reserved for private networks. Using private IP means that it would not matter if a router of any neighbouring network of computers uses the same default IP. This is because each router will be a part of its own network and hence would be able to run with the same IP address as several other independently working routers. Of course, you can’t use the same IP address for two devices in one network. In such a scenario, name duplication and hence, network clashes will occur. This will cause your network to malfunction, and it would continue to be so till you give a different IP address to all conflicting devices, except one.

In this manner, network engineers have a lot of interaction with 192.168.2.1. The fact that there are several manufacturers using this IP as the default set one with their routers also accentuates its importance. Hence, knowledge of the same forms a vital part of their training and they stand to gain a lot from understanding the nuances of the working of routers that have 192.168.2.1 as the default IP address.

Being the default IP address that comes with routers models from D-Link and Netgear, 192.168.0.1 is not an uncommon term when it comes to the conversations and dictionaries of network architects. This address is built into the routers when they leave the factory premises for the store shelves of equipment retailers. Default, however, does not mean permanent. Users can pick and choose their preferred IP address for addressing the router in the network. However, they would need to do so only after making use of the default IP address in the first go. In fact, there is hardly any chance that a LAN set-up in an office building or any other similar environment can pass without the mention of 192.168.0.1!

Establishing the default gateway is an important task in network administration, and the private IPv4 address of 192.168.0.1 is the tool that lets you do this. For this and several other administrative duties associated with the router, one would have to access the setup page for the same on the computer. This, in turn, requires an Ethernet connection between the router and the computer terminal. Once the connection is done, you’d have to open the web browser in the computer (any program like Mozilla Firefox or Internet Explorer would work fine) and type in a web address corresponding to the default IP address of the router, that is, 192.168.0.1 in our case. Network administrators find themselves in constant need of executing minor system manipulations and tweaks in the console panel of the router. In this sense, they would do well to gain a thorough grasp of 192.168.0.1, its significance and the corresponding options that are available for manipulation in the control panel.

Routers coming with default IP addresses, such as the D-Link and Netgear routers with 192.168.0.1 default IP, are integral parts of any network. They perform the indispensible role of routing data packets to the destined location. Within a private network, only a single router can have this IP address or for that matter, any other IP address. This is because if two network devices have the same IP address, the scenario would be similar to two persons with the same name. The problem would be that a call to the name would confuse both devices as there would be no way to identify as to which device the call was made! Hence, within a network, routers have exclusive names or IP addresses. So why does it happen that companies float thousands of routers with the same default IP address? The answer is pretty simple. Private networks do not access Internet, and hence retain the identity of their devices.

Thus, as long as there is no common network, routers can have the same IP address. This makes the job of network architects and engineers easier in the case of projects where they have to establish multiple LAN networks in one building. Giving different routers of different networks their unique names can sometimes be too taxing on the memorizing power of the network engineer! Also, you would not need to go for a DHCP server when you use the 192.168.0.1 IP address. The router enables you to do away with the need of other switches in the network. Using a well known default IP address also has an advantage in the sense that there is a lot more predictability about the networking devices you buy and depend on to get the networking going. The dual service as default gateway also enables the data distribution to different points in the network.

Like several other default IPs that have been taken by major networking equipment manufacturers of the world, 192.168.0.1 too belongs to the private use reserved class of IP addresses that range from 192.168.0.0 to 192.168.255.255. D-Link and Netgear routers are quite popular, and hence, it would do budding network architects a world of good to brush up their knowledge of 192.168.0.1.

Some of the manufacturers that set 192.168.1.1 into their networking devices are pretty well known and established industry players. However, none match the market penetration levels achieved by Linksys. It is not possible for any networking engineer to enter the industry without having heard of Cisco, the networking solutions superpower. Linksys is a subsidiary to Cisco, and their usage of 192.168.1.1 as the default broadband router IP makes it an essential tool to master for every budding and practicing network engineer.

IP addresses do for networking devices exactly what names do for human beings, i.e., identify them and make addressing them easier. Routine tasks required with networks necessitate engineers to address certain devices that form a part of the network and make them alter their behavior for better results. IP address becomes the medium of addressing and manipulating the behavior of such devices. Obviously, a Linksys broadband router with 192.168.1.1 as the default IP address would be called and manipulated through this name.

If the networking equipment you purchase from the market comes with a default IP, as is the case with Linksys’ products, it could well cross your mind that there could be clashes while using two devices using the same IP. Obviously, the network would hit a blockage if it were to contain two devices with 192.168.1.1 as the IP. There are two concrete reasons behind the fact that the usage of 192.168.1.1 as default IP does not pose any problem in any way. Firstly, the default setting of IP means does not mean that the broadband router will be stuck with the name forever. In fact, you can very easily change the default IP to some other value. Secondly, these devices are parts of localized networks that are not connected to the Internet. Hence, it does not make a difference if your and your neighboring office’s networks use the same kind of routers with 192.168.1.1 as the default IP.

As networking trainees learn very early in their courses, the IP address range from 192.168.0.0 to 192.168.255.255 is reserved for addressing of devices in privately owned and operated networks. The essence of private networks lies in the fact that devices assigned an IP address within the network can be accessed from only within the network and not outside it. This means that your call to 192.168.1.1 will only be received by your network’s router, and not any other, even if some network in the immediate neighborhood happens to be using a similar device. 192.168.1.1, being a part of this reserved range of IPs, becomes immune from chances of clashes due to same IP addresses. As Linksys’ bulk manufactured broadband routers go on to form parts of different and independent networks, the usage of a default IP becomes pretty logical.

Network engineers get loads of functionality from the router setup page of Linksys routers. Network administration requires routine manipulations in wireless security modes, SSID alterations and keys of the security networks. All these features are accessible from the router setup page. The router that comes with 192.168.1.1 as the default IP can be connected to a computer through Ethernet. From then on, all you need is your computer’s web browser to enter the setup page. You will need to type in http://192.168.1.1/ in the address bar of the browser, and then hit the Enter key on the keyboard. A pop up will prompt you to key in the login credentials. By default, you have to leave the username blank and use a password of admin. This is useful when you are about to set the network up for the first time. Once you go to the setup age, you will see all the options and menus that can help you set everything up according to your requirements.

Network engineers can hardly do without the knowledge of the working of widely used default IP addresses such as 192.168.1.1. Once they have a hang of the basics, they can use the functionality of the setup page to their advantages.