# What is the Cardano-node mainnet configuration I need to start?

**URL:** <https://forum.cardano.org/t/what-is-the-cardano-node-mainnet-configuration-i-need-to-start/47712>\
**Category:** Operate a Stake Pool\
**Tags:** cardano, mainnet\
**Created:** [13 February 2021 07:26 UTC](https://forum.cardano.org/t/what-is-the-cardano-node-mainnet-configuration-i-need-to-start/47712 "2021-02-13T07:26:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![godofrefuse](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/godofrefuse/32/26979_2.png) [@godofrefuse](https://forum.cardano.org/u/godofrefuse)\
**Post date:** [13 February 2021 07:26 UTC](https://forum.cardano.org/t/what-is-the-cardano-node-mainnet-configuration-i-need-to-start/47712/1 "2021-02-13T07:26:00Z")

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I am able to boot up testnet, but mainnet will not start. I’ve tried 0.0.0.0 and my ip and internal ip. I’ve tried port forwarding 3000, 3001, 3002. But I dont see them open with a port checker.

Im running a UBuntu server on a VMbox.

I get this error:

Shutting down…  
NetworkMagicMismatch “/home/dii/relay/db/protocolMagicId” (NetworkMagic {unNetworkMagic = 1097911063}) (NetworkMagic {unNetworkMagic = 764824073})

cardano-node: Wrong NetworkMagic in “/home/dii/relay/db/protocolMagicId”: NetworkMagic {unNetworkMagic = 1097911063}, but expected: NetworkMagic {unNetworkMagic = 764824073

(Extra question, how much bandwith do nodes use per month?)

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**Author:** ![laplasz](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/laplasz/32/15238_2.png) [@laplasz](https://forum.cardano.org/u/laplasz)\
**Post date:** [14 February 2021 17:09 UTC](https://forum.cardano.org/t/what-is-the-cardano-node-mainnet-configuration-i-need-to-start/47712/2 "2021-02-14T17:09:42Z")

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Hi  
What was the command you used to start the node? should be something like this:  
`./cardano-wallet-linux64/cardano-node run --topology configs/topology.json --database-path storage/ --socket-path storage/node.socket --host-addr 0.0.0.0 --port 3001 --config config.json`