my own WAN IP got changed a few months after my ISP was eating(err, bought) by another larger ISP... now it's a private IPv4 address. I'm pretty sure my 'symmet

my own WAN IP got changed a few months after my ISP was eating(err, bought) by another larger ISP... now it's a private IPv4 address. I'm pretty sure my 'symmetrical bandwidth' is now only really true when testing it, a technique first invented by Herr Volkswer aus Deutsch-Wagen.