How to add peer to ethereum private network

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I have created an Ethereum private network on my Ubuntu VM and it is running all fine. Now, to create a scenario like a real-world scenario, I have created another VM and now want to add this to my already created Ethereum private network. How can I do this?
Jan 22, 2019 in Blockchain by slayer
• 29,370 points
2,948 views

1 answer to this question.

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To connect a node to already existing private network on a different VM, you have to setup Ethereum on the new VM and then connect. You have already setup Ethereum Private Network on one Ubuntu system (VM-1). Now, you must create an Ethereum Network on the new Ubuntu System (VM-2) using the same steps that you used to create the network on VM-1. While created the network on VM-2, make sure to satisfy the following conditions:

1.      VM-2 must have the same Genesis Block as that of VM-1

2.      The network for both the VMs must be NAT or Bridged network

3.      Port numbers on VM-1 and VM-2 mentioned in the geth command to start the Blockchain should be different.

Once you set up the system to meet the above-mentioned conditions, you and add the peer. On VM-2, run the following command in the geth console to get the enode:

admin.nodeInfo 

You will be displayed an enode URL.

Now in VM-1, in the geth console, run the following command by replacing the enode URL that you got on VM-2.

admin.addPeer("enode_URL")

Now, the peer will be added.

answered Jan 22, 2019 by Omkar
• 69,220 points

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