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What It Means When You See the an IP Address

The IP address in Internet Protocol (IP) version 4 (IPv4) is 0.0.0.0 to 255.255.255.255. IP address 0.0.0.0 has many special meanings in a computer network. However, this address can not be used as a normal device address.


This IP address is designed on a regular basis (there are four digits for numbers), but it is actually a wildcard address or a description that no common address has been assigned. For example, instead of the IP address in the program's network range, you can accept all IP addresses or with 0.0.0.0 block all IP addresses in the default path.


0.0.0.0 and 127.0.0.1 are easy to make mistakes. Keep in mind, there are many defined uses in the four-zero address (as described below), while 127.0.0.1 allows the device to send messages to e-mail. There is a special purpose.

0.0.0.0 IP address is sometimes referred to as a wildcard address, specified address, or INADDR_ANY.

What does 0.0.0.0 mean?
In short, 0.0.0.0. A non-routine address that describes an invalid or unknown destination. However, this means that a computer or server on the client device is displayed on the computer or not.

On the client computer
PC and other client devices usually display address 0.0.0.0 if it is not connected to TCP / IP network. If they are offline, the device can assign this address by default.

In case of address handling errors, it may be assigned automatically by DHCP. When set up with this address, the device can not communicate with other devices on the network.

In principle, 0.0.0.0 can be set as a subnet mask instead of the device's IP address. However, the subnet mask of this value has no practical purpose. Both IP addresses and network masks are typically assigned 0.0.0.0 on the client.

Depending on the application, the firewall or router will use software 0.0.0.0 which suggests that each IP address should be locked (or allowed).

On software applications and servers
Some devices, especially network servers, have many network interfaces. It uses TCP / IP software application 0.0.0.0 programming technology to monitor network traffic on all IP addresses assigned to the interface on a multi-home device.

When the connected computers do not use this address, the messages sent to the IP include 0.0.0.0 in the protocol header, if the source of the message is unknown.

What to do if the IP address 0.0.0.0 is displayed?
If the computer is properly configured for the TCP / IP network and still shows 0.0.0.0 for the address, try the following to resolve this problem and obtain a valid address:

On a network with dynamic address assignment support, share and update the computer's IP address. DHCP assignment errors can be embedded or continuous. If the error persists, fix the DHCP server configuration: There is no address for the most common reasons for errors in the DHCP pool.
For networks that require static IP addressing, configure a valid IP address on the computer

The IP address in Internet Protocol (IP) version 4 (IPv4) is 0.0.0.0 to 255.255.255.255. IP address 0.0.0.0 has many special meanings in a computer network. However, this address can not be used as a normal device address.


This IP address is designed on a regular basis (there are four digits for numbers), but it is actually a wildcard address or a description that no common address has been assigned. For example, instead of the IP address in the program's network range, you can accept all IP addresses or with 0.0.0.0 block all IP addresses in the default path.


0.0.0.0 and 127.0.0.1 are easy to make mistakes. Keep in mind, there are many defined uses in the four-zero address (as described below), while 127.0.0.1 allows the device to send messages to e-mail. There is a special purpose.

0.0.0.0 IP address is sometimes referred to as a wildcard address, specified address, or INADDR_ANY.

What does 0.0.0.0 mean?
In short, 0.0.0.0. A non-routine address that describes an invalid or unknown destination. However, this means that a computer or server on the client device is displayed on the computer or not.

On the client computer
PC and other client devices usually display address 0.0.0.0 if it is not connected to TCP / IP network. If they are offline, the device can assign this address by default.

In case of address handling errors, it may be assigned automatically by DHCP. When set up with this address, the device can not communicate with other devices on the network.

In principle, 0.0.0.0 can be set as a subnet mask instead of the device's IP address. However, the subnet mask of this value has no practical purpose. Both IP addresses and network masks are typically assigned 0.0.0.0 on the client.

Depending on the application, the firewall or router will use software 0.0.0.0 which suggests that each IP address should be locked (or allowed).

On software applications and servers
Some devices, especially network servers, have many network interfaces. It uses TCP / IP software application 0.0.0.0 programming technology to monitor network traffic on all IP addresses assigned to the interface on a multi-home device.

When the connected computers do not use this address, the messages sent to the IP include 0.0.0.0 in the protocol header, if the source of the message is unknown.

What to do if the IP address 0.0.0.0 is displayed?
If the computer is properly configured for the TCP / IP network and still shows 0.0.0.0 for the address, try the following to resolve this problem and obtain a valid address:

On a network with dynamic address assignment support, share and update the computer's IP address. DHCP assignment errors can be embedded or continuous. If the error persists, fix the DHCP server configuration: There is no address for the most common reasons for errors in the DHCP pool.
For networks that require static IP addressing, configure a valid IP address on the computer