topic Re: Sandbox connection problems in DevNet Sandbox

Sandbox connection problems

Kepa — Wed, 23 Dec 2020 13:01:56 GMT

Good morning,

I´m interested in learning about ansible usage for automating some network deployments. For this reason, I´m trying to use Sandbox for my first Ansible Learning Labs, but I´m getting the error below when executing the first one from my local CentOS machine:

(venv) [root@localhost intro_module]# ansible-playbook -i inventory 01_aci_tenant_pb.yml
What would you like to name your Tenant?: test

PLAY [ENSURE APPLICATION CONFIGURATION EXISTS] *********************************

TASK [ENSURE APPLICATIONS TENANT EXISTS] ***************************************
fatal: [sandboxapicdc.cisco.com]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: ssh: connect to host sandboxapicdc.cisco.com port 22: Connection timed out", "unreachable": true}

PLAY RECAP *********************************************************************
sandboxapicdc.cisco.com : ok=0 changed=0 unreachable=1 failed=0 skipped=0 rescued=0 ignored=0

I also tried to create a tennant or an EPG using the web Sandbox interface (I got to do it some weeks before), but I´m getting an error that sounds similar:

Error: 400 - the messaging layer was unable to deliver the stimulus (connection error, Connection refused)

My question is: ¿Is it only happening to me or is it something wrong with Sandbox Environment?

Thanks in advance and merry christmas 😉

Re: Sandbox connection problems

omz — Thu, 24 Dec 2020 15:09:55 GMT

I dont think you SSH to the always-on sandbox "sanboxapicdc.cisco.com" and Ansible is failing to connect on port 22.

Either test with a revered sandbox or try the REST API for always-on.

If you getting an error on the GUI - sometimes you can get an error due to the sandbox environment and load. But that gets fixed pretty quickly.

If you need a more reliable lab .. use a revered lab instead of on always-on

Re: Sandbox connection problems

zowu — Mon, 28 Dec 2020 14:05:10 GMT

Could you please let me know which learning lab you are following? In my understanding, there is only HTTPS access available. against host sandboxapicdc.cisco.com, not for SSH.

Re: Sandbox connection problems

mmuldoon — Wed, 30 Dec 2020 21:42:19 GMT

I checked mgmnt setting on sandbox, it is set to allow SSH, see pic:

Re: Sandbox connection problems

omz — Wed, 30 Dec 2020 22:47:50 GMT

You cannot SSH to sandboxapicdc.cisco.com sandbox. Even if its allowed on the APIC.. there must be a firewall sitting in front of these sandboxes ..

Nmap scan report for sandboxapicdc.cisco.com (64.103.37.54) Host is up (0.065s latency). Not shown: 998 filtered ports PORT STATE SERVICE 80/tcp open http 443/tcp open https