topic Re: CML Devnet Sandbox Internet Connectivity in DevNet Sandbox

CML Devnet Sandbox Internet Connectivity

UncleGranpa — Wed, 27 Aug 2025 03:34:16 GMT

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.

Re: CML Devnet Sandbox Internet Connectivity

balaji.bandi — Wed, 27 Aug 2025 06:41:09 GMT

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

may be right command - sudo apt update

Re: CML Devnet Sandbox Internet Connectivity

Martin L — Wed, 27 Aug 2025 08:05:42 GMT

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

Re: CML Devnet Sandbox Internet Connectivity

bigevilbeard — Wed, 27 Aug 2025 10:15:58 GMT

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 ...

Re: CML Devnet Sandbox Internet Connectivity

Harold Ritter — Wed, 27 Aug 2025 15:36:38 GMT

Hi @UncleGranpa ,

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

Re: CML Devnet Sandbox Internet Connectivity

devnet_geek — Wed, 27 Aug 2025 16:28:27 GMT

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.