Programming dual IP addresses

There are situations where you have a device that's physically on the same network, but is using a different address scheme. For example: You need to log into a device on IP Address 10.151.151.101, but your computer is 192.168.1.200. Normally, this would not allow you to login and the login attempt will time out.

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To work around this we can manually program the existing address and add a secondary IP so the connection attempt is successful.

Check your current IP address

Right click the windows icon and select "Run"

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Type cmd in the empty field and click "OK"

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Type ipconfig /all in the command prompt.

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Find your current IP4 address, Default Gateway, and DNS servers.

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Right click the network icon in your task bar and click

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Select "Open Network & Internet settings"

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Select "Change Adapter Options"

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Find your LAN/Ethernet connection. 
Note: You may have multiple adapters listed here. 

 

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Right-click your LAN Adapter and select "Properties"

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Click "Internet Protocol Version 4 (TCP/IPv4)" and select "Properties"
Note: Do not uncheck IPv4.

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Select "Use the following IP address"

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We are going to mirror the cmd prompt settings so that we don't lose normal network connectivity.

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Enter the IP address settings from ipconfig /all
Select "Advanced" when finished.

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Click "Add" and enter an IP Address that is within the same subnet as the device, but it cannot be the same IP address. 

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Our device is 10.151.151.101. We are using 10.151.151.250.
Enter the address and click "Add"

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Click OK-OK-Close to complete the process.

Your computer now has an IP address of 192.168.1.131 and 10.151.151.250. This means we can now communicate at the network level with 10.151.151.101.

Setting your network settings back to DHCP

 

Right click the network icon in your task bar and click

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Select "Open Network & Internet settings"

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Select "Change Adapter Options"

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Find your LAN/Ethernet connection. 
Note: You may have multiple adapters listed here. 

 

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Right-click your LAN Adapter and select "Properties"

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Click "Internet Protocol Version 4 (TCP/IPv4)" and select "Properties"
Note: Do not uncheck IPv4.

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Select "Obtain IP Address automatically"

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Click OK->Close->Close.