# 2 Ethernet cards, 2 networks

**URL:** <https://forums.balena.io/t/2-ethernet-cards-2-networks/2603>\
**Category:** Product support\
**Created:** [February 21, 2018, 11:19am UTC](https://forums.balena.io/t/2-ethernet-cards-2-networks/2603 "2018-02-21T11:19:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![RDB](https://avatars.discourse-cdn.com/v4/letter/r/8baadc/32.png) [@RDB](https://forums.balena.io/u/RDB)\
**Post date:** [February 21, 2018, 11:19am UTC](https://forums.balena.io/t/2-ethernet-cards-2-networks/2603/1 "2018-02-21T11:19:58Z")

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Hi All,  
Would it be easy and possible to run 2 ethernet networks with a device with 2 ethernet interfaces?  
I want to be able to connect one ethernet card to the internet and make a second internal network for TCP modbus slaves on the other interface.

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**Author:** ![sqweelygig](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/sqweelygig/32/150_2.png) [@sqweelygig](https://forums.balena.io/u/sqweelygig)\
**Post date:** [February 21, 2018, 6:47pm UTC](https://forums.balena.io/t/2-ethernet-cards-2-networks/2603/4 "2018-02-21T18:47:33Z")

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Have you read this topic ([Bridged network configuration](https://forums.balena.io/t/bridged-network-configuration/2325/42)), which whilst not an exact match, does tackle the issue of having more than one network (in their case for a proxy server, but I’d imagine an public / private without through traffic might be easier)