CML Sandbox External Connector

[imanless]

Hello. I am using sandbox version of Cisco Modeling Labs. I am writing this to ask in which subnet should i configure my device connected to the external connector. If I use bridged mode, there is no dynamic ip assignment. But if I use NAT mode, then an ip in the 192.168.255.0 subnet is assigned, which is not accessible. can anyone guide me what can be done about it ?

[Torbjørn]

I believe external outbound connectivity isn't allowed from the sandboxes. I have seen a couple of these questions recently, is this something you can confirm @jokearns1?

[imanless]

But in the sample topology which is already present in the CML sandbox, has devices which you can ssh into. So i thought may it is also possible to create a new lab and have an external connector in it and be able to ssh into to the devices in that lab. 

[Torbjørn · Accepted solution]

Sorry, I misinterpreted your question. Yes that is possible. 

You will need to configure your external connector to use bridge0 and configure your devices in 10.10.20.0/24. Note that traffic is only allowed inbound to CML and you won't be able to establish connections outbound from CML.

[imanless]

Thankyou. Are all the addresses other than the one mentioned in the sample topology available for use in the 10.10.20.0/24 subnet ? 

[Torbjørn · Accepted solution]

I would assume that all other addresses than .1, .50 and .170-178 are free to use. If you shut down the "default lab" nodes you can use .170-178 as well. This is however not explicitly documented anywhere.

[jokearns1 · Accepted solution]

Hi @imanless 

@Torbjørn is correct. the 192.168.255.0 subnet is not routable within our network may be a remnant of an old similation. Use a free 10.10.20.0 IP. i.e. 10.10.20.150.
Either way, we need to document this better on our side. I will get with the team and we will update the documentation.
Joe 

[imanless]

Thanks a lot.