CODEWITHSUNDEEP
ethereumgo-ethereumprivate-networkgethether
Ryan Cocuzzo
Ryan Cocuzzo

Reputation: 3219

Geth failing to connect to private network

I am creating a private Network (Ethereum). I wrote out the genesis.json file (code below), I then initialized it without error, but when I try to connect to it, a new line is created (implying an additional command should be specified). When I press enter, geth simply connects to the main network. How do I get geth to connect to the private network?

note: you can immediately tell geth connects to the main network because my chain's ID is 15 and it shows a connection to 1.

genesis.json:

{
  "difficulty" : "0x20000",
  "extraData"  : "",
  "gasLimit"   : "0x8000000",
  "alloc": {},
  "config": {
        "chainId": 15,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    }
}

Command Line:

Ryan-Cocuzzos-Laptop:BlockDev Ryan$ geth init ./genesis.json --datadir mychaindata
WARN [01-05|12:12:00] No etherbase set and no accounts found as default 
INFO [01-05|12:12:00] Allocated cache and file handles         database=/Users/Ryan/Desktop/BlockDev/mychaindata/geth/chaindata cache=16 handles=16
INFO [01-05|12:12:00] Writing custom genesis block 
INFO [01-05|12:12:00] Successfully wrote genesis state         database=chaindata                                               hash=0613eb…9a64e7
INFO [01-05|12:12:00] Allocated cache and file handles         database=/Users/Ryan/Desktop/BlockDev/mychaindata/geth/lightchaindata cache=16 handles=16
INFO [01-05|12:12:00] Writing custom genesis block 
INFO [01-05|12:12:00] Successfully wrote genesis state         database=lightchaindata                                               hash=0613eb…9a64e7
Ryan-Cocuzzos-Laptop:BlockDev Ryan$ geth --datadir .\mychaindata\
> 
WARN [01-05|12:13:37] No etherbase set and no accounts found as default 
INFO [01-05|12:13:37] Starting peer-to-peer node               instance=Geth/v1.7.3-stable/darwin-amd64/go1.9.2
INFO [01-05|12:13:37] Allocated cache and file handles         database=/Users/Ryan/Desktop/BlockDev/.mychaindata/geth/chaindata cache=128 handles=1024
INFO [01-05|12:13:37] Writing default main-net genesis block 
INFO [01-05|12:13:37] Initialised chain configuration          config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Engine: ethash}"
INFO [01-05|12:13:37] Disk storage enabled for ethash caches   dir=/Users/Ryan/Desktop/BlockDev/.mychaindata/geth/ethash count=3
INFO [01-05|12:13:37] Disk storage enabled for ethash DAGs     dir=/Users/Ryan/.ethash                                   count=2
INFO [01-05|12:13:37] Initialising Ethereum protocol           versions="[63 62]" network=1
INFO [01-05|12:13:37] Loaded most recent local header          number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [01-05|12:13:37] Loaded most recent local full block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [01-05|12:13:37] Loaded most recent local fast block      number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [01-05|12:13:37] Regenerated local transaction journal    transactions=0 accounts=0
INFO [01-05|12:13:37] Starting P2P networking

ADDITIONAL INFO: I am running MacOS Sierra (10.12.3) I am using Terminal (2.7.1)

Upvotes: 0

Views: 1653

Answers (2)

Gangadhar Kairi
Gangadhar Kairi

Reputation: 478

You are missing --networkid and other import parameters like port etc. Use below command for connecting to your network.

geth --networkid 15 --datadir .\mychaindata

Additional parameters for geth are below

geth --networkid <chainId> 
     --mine 
     --datadir <datadir> 
     --nodiscover 
     --rpc --rpcport "8545" 
     --port "30303" 
     --rpccorsdomain "*" 
     --nat "any" 
     --rpcapi eth,web3,personal,net 
     --unlock 0 
     --password <password file> 
     --ipcpath <path to .ipc file>

Upvotes: 0

Adam Kipnis
Adam Kipnis

Reputation: 10991

You're missing --networkid when starting geth.

geth --networkid 15 --datadir mychaindata

Upvotes: 1

Related Questions