# Ipfs dag get file hang indefinitely

**URL:** <https://discuss.ipfs.tech/t/ipfs-dag-get-file-hang-indefinitely/15127>\
**Category:** Help\
**Tags:** go-ipfs\
**Created:** [September 6, 2022, 9:02am UTC](https://discuss.ipfs.tech/t/ipfs-dag-get-file-hang-indefinitely/15127 "2022-09-06T09:02:35Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![gongzh](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ipfs.tech/gongzh/32/6907_2.png) [@gongzh](https://discuss.ipfs.tech/u/gongzh)\
**Post date:** [September 6, 2022, 9:02am UTC](https://discuss.ipfs.tech/t/ipfs-dag-get-file-hang-indefinitely/15127/1 "2022-09-06T09:02:35Z")

</div>

I started 2 nodes (both connected to bootstrap node)

step 1. node 1 - check peers (showing node2 only)

```auto
# ipfs swarm peers
/ip4/10.2.1.20/tcp/39976/p2p/12D3KooWE13PmaggSkC2V7fs6gPoY5Uqt1KHqgFiZwb36yFuKAUj
(id 12D3KooWE13PmaggSkC2V7fs6gPoY5Uqt1KHqgFiZwb36yFuKAUj is node2's ID)

```

here we can see peer node2’s port number is a random client socket connection number **39976**

Then we put some data from node 1:  
`# ipfs dag put <some data>`

step 2. node 2 - check peers (showing node1 only)

```auto
# ipfs swarm peers
/ip4/10.1.1.10/tcp/4001/p2p/12D3KooWCDShp68jzEZ16VovTDMeFqzzn1BBqVNY6HWQoHGpY3ur
(id 12D3KooWCDShp68jzEZ16VovTDMeFqzzn1BBqVNY6HWQoHGpY3ur is node1's ID)

```

step 3. then tried to get file uploaded from node 1:

# ipfs dag get

The command here hang indefinitely…

But, on node 2, we see peer(node1)'s port is **4001** , then we put data from node 2, node 1 can get instantly.

I asked this question on github:  
[https://github.com/ipfs/kubo/issues/9246](https://github.com/ipfs/kubo/issues/9246)

And Jorropo kindly replied with comment:  
you probably have a restrictive NAT that doesn’t support hole punching.

I’m wondering how to check if there is a restrictive NAT that doesn’t support hole punching?  
And how to solve the problem?

Thanks!