I purchased the above-mentioned GigaVUE-212 for my test lab from eBay, to determine if I want to use them in production. However, the thing doesn't respond to the default passwords, and I can't figure out how to reset from the console. I do have access to the RedBoot loader, but their documentation is super vague about it.
I'm contacting support as well, and will leave an answer here if they have one for me other than "welp, that's why you don't use eBay", but my hope is someone else has been down this road.
Steps to totally reset to factory:
RedBoot>
prompt, typefconfig rstrtac true
, then answery
when it asksUpdate RedBoot non-volatile configuration - continue (y/n)?
For Gigamon Gigavue-MP, the steps from Bill Weiss above will give you access to the cli.
However the config and prior saved config files are still present