I wonder how developers at Tailscale, Zoom, the Google Meet team, etc. test restrictive firewall and NAT scenarios in their office or, these days, home-office environments. Do they get cheap routers with OpenWrt or the like to emulate the external firewall products that corporate IT types use? Do they buy those actual firewall appliances? Do they set up a virtual network on their workstation inside VMware or the like? Something else?
@matt aren't mobile phones and carrier grade NATs the ultimate boss enemy?