{"id":3301,"date":"2021-09-13T06:22:10","date_gmt":"2021-09-13T06:22:10","guid":{"rendered":"https:\/\/routerctrl.com\/?p=3301"},"modified":"2022-07-28T15:46:13","modified_gmt":"2022-07-28T15:46:13","slug":"192-168-0-20","status":"publish","type":"post","link":"https:\/\/routerctrl.com\/192-168-0-20\/","title":{"rendered":"192.168.0.20"},"content":{"rendered":"

What kind of address is this? Is it your default IP? What IP cameras use 192.168.0.20 as a default IP? What can I do with this address? You will find all the answers in this article.<\/b><\/p>\n

Basics of IP Addressing<\/h2>\n

IP addresses are used to identify devices on networks. Without an IP address, the device can\u2019t send or receive data from other devices connected to the same network. It can\u2019t even connect to that network. Every device on one network must have a unique IP address. If the address is not unique (if you have two devices on the same network with the same IP), an IP conflict<\/a> occurs and the devices using the same IP are not be able to communicate with other devices. <\/span><\/p>\n

The form of an IP address is defined by the IPv4 protocol. An IP address is a string of 32 bits, divided into four segments, each containing 8 bits. These segments are called octets. Every binary IP address can be transformed into decimal form. A decimal form of an IP address consists of four numbers ranging from 0 to 255. If one of the numbers in an IP address doesn\u2019t belong to this range (if it\u2019s 256 or 752), the address is not valid. If the address has more than 4 segments\/numbers (<\/span>192.168.0.1.1<\/span><\/a>), the address is also not valid. The number of unique IP addresses we can make with 32 bits is 2<\/span>32<\/span>. <\/span><\/p>\n

\"192.168.0.20\"IPv4 also defines other rules of IP addressing. It categorizes all the available addresses into 5 classes. Each class is reserved for a different network size or a different purpose. Addresses that belong to classes A to C are used on networks, class D addresses are used for multicast, and class E for experiments. <\/span><\/p>\n

\"one<\/p>\n

Since we have too many devices that can be connected to the internet and too few addresses that can be assigned to those devices (10+ billion vs 4.3 billion), the only way to make things work and keep IPv4 protocol alive was to introduce blocks of private addresses within the first three classes. You can see those blocks in the table given above. <\/span><\/p>\n

Private addresses are designed for use on local area networks, like our home wi-fi networks or office networks. Private addresses are not used on the internet. For internet access, we have our routers. These interesting devices have two addresses \u2013 one private address (assigned by the manufacturer) and one public IP address (assigned by the ISP to our entire network). <\/span><\/p>\n

Routers use their private addresses (<\/span>default IP addresses or default gateways<\/span><\/a>) to communicate with the devices connected to them and then use their public IP addresses to access the internet and answer to all the requests for internet access sent from our devices. So, all the devices connected to a single LAN (our wi-fi) have unique private IP addresses and use just one public IP address to access the internet. <\/span><\/p>\n

\"public<\/p>\n

To sum things up – dedicated blocks of private IP addresses prolonged the life of IPv4 protocol by allowing an unlimited number of devices connected to different LANs to use the same private IP address. The introduction of private (and public) addresses created the situation in which multiple devices connected to the same LAN can use only one public address for internet access.  <\/span><\/p>\n

What Kind of Address is 192.168.0.20?<\/h2>\n

Based on what we\u2019ve just said, you can conclude on your own what kind of address this is. It is a private address from a dedicated block of Class C private addresses. <\/span><\/p>\n

As a private address, 192.168.0.20 can be assigned to your router as a default IP, it can be assigned to some other device as a default IP (access point, range extender<\/a>, IP camera), or it can be assigned (by your router) to your PC or some other device that connects to your wi-fi (client IP). <\/span><\/p>\n

Is 192.168.0.20 My Router\u2019s Default Gateway?<\/h2>\n

This address, just like any private IP address, is a viable choice when it comes to default IP addresses. However, we haven\u2019t heard of any router that uses 192.168.0.20 as a default IP. <\/span><\/p>\n

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