Questions tagged [networkid]

Different ethereum networks are distinguished by their networkids. Two clients with different networkids will not relay blocks or transactions.

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What is the difference between networkid 3 and testnet?

I have geth 1.5.4 installed on my ubuntu box. Here is the geth command line documentation for networkid: --networkid value Network identifier (integer, 0=Olympic (disused), 1=...
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What's the difference between Olympic, Morden and Ropsten?

Canonical question about the public Ethereum testnets. What's the difference between Olympic, Morden and Ropsten? What are their network IDs, which ones are still considered active?
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Getting Go-Ethereum current network id

How can I know the network id, with web3 or command line, so I know to which network my geth has attached?
2
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2answers
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field size and value range of chainId (EIP-155)

EIP-155 defined a list of chain IDs, e.g. main net is 1 Ropsten is 2. I don't seem to be able to find a definition about its supposed value range and data size. Quoting the yellow paper rule (287) ...
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0answers
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What is Olympic, Frontier and Morden? [duplicate]

I see some clients accept the command line argument --frontier or --olympic. Is 'Frontier' more than just a name? What does it stand for? And how does it differ from 'Olympic' and 'Morden'? What are ...