# About Across interaction

By [zhe988](https://paragraph.com/@aspreybugatti) · 2022-03-09

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About Across interaction
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Across the chain interaction tutorial - ETH
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### Introduction

Across is the fastest, cheapest and safest bridge between L1 and L2

**This interaction cost 70u, minimum cross-chain amount 0.1ETH**

Official Twitter：[(17) Across (@AcrossProtocol) / Twitter](https://twitter.com/AcrossProtocol)

![](https://storage.googleapis.com/papyrus_images/a93bf827bbc874b65a708097a6344b70811e24175ee4ab4f377be5b33f1c5130.png)

Official discord：[Across Protocol (discord.com)](https://discord.com/invite/h2XZ5YBm6Y)

interaction
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1.  Open the website and connect your wallet
    

![](https://storage.googleapis.com/papyrus_images/c07f3a09e0080168f1d3ac44c53a0d3857eed04ab0213d3db8124b4f2ec6dd29.png)

1.  L1 to L2 cross-chain
    

'From' select ETH, fill in the cross-chain amount, 'To' select Arbiturm or Optimism, here select Arbitrum.

It is recommended that the cross-chain amount is larger, 0.1ETH to start with, because according to my interactive findings, step 3 L2 to L1 cross, the minimum required amount is 0.1ETH, because the fee is the same.

![](https://storage.googleapis.com/papyrus_images/3fa8edbee8c383886bd26b968a2d3a07152213baf09da0970a9f811655855f6b.png)

Click Send to send

![](https://storage.googleapis.com/papyrus_images/2d8d49e62eb2495a35c28a465862c9c01331c804bb1150c3fd2e27ba5b097a96.png)

The cross-chain is successful, and the funds will arrive in about 10 minutes

1.  L2 to L1 cross-chain
    

’From‘ select Arbitrum, enter the cross-chain amount, ’to‘ select ETH

![](https://storage.googleapis.com/papyrus_images/44999f5ec48b1c5ddaf9a6a172924f1226cbd629c6bf02863f8f43715bece0aa.png)

Click Send

![](https://storage.googleapis.com/papyrus_images/37ccdafeaf0601fb0245c8ebf77fd9d5908cbafbca1e93341f3ab0558a4567df.png)

Successful recharge, estimated arrival time 2 minutes

1.  Adding Pool
    

Click the 'Poll' button at the top to go to the pool page

Click 'ADD', enter the number of ETH to be added to the pool, and click 'Add Liquidity'

![](https://storage.googleapis.com/papyrus_images/ecb59ca4232cf81381e7f93b1a028e771e4abb16e2b730c15cfafcdf44687063.png)

This interaction is complete

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*Originally published on [zhe988](https://paragraph.com/@aspreybugatti/about-across-interaction)*