CML Devnet Sandbox Internet Connectivity

[UncleGranpa]

I don't know if things have changed as of late/in 2025 with the CML DevNet Sandbox, are you still able to connect an external connector set to NAT to your lab and download packages/updates to hosts? I've viewed threads a couple of years older and they mentioned ping not working but the ability to download packages/updates still worked. I cannot get my hosts to successfully pull an update (I tried "sudo apk update"). Wondering if the capability is still there.

[balaji.bandi · Accepted solution]

i remember using 2.8 it was worked as i recollect my memory.

may be right command - sudo apt update

[Martin L]

don't think so, try downloading ur lab; the, try uploading it

[bigevilbeard]

I am going to say no, i think where this was once possible, it was locked down due to misuse and security posture. Happy to be wrong here however ... 

[Harold Ritter]

Hi @UncleGranpa ,

I quickly checked from the Ubuntu server instance and it works like a charm.

[devnet_geek · Accepted solution]

Hey @UncleGranpa

NAT option is available in External_Connector node. We have configured default topology with bridge mode to connect devices, however if you want to switch to NAT, you may need to stop, wipe and restart default topology to download packages via apt-get in Ubuntu nodes.