It's very late in the day, and this pilot fish from a networking services outfit is upgrading a client's connection to the internet.
"The client had a cable company for their internet service provider, and they previously had a changing IP address through DHCP," says fish.
"We were moving them to a fixed external IP address, and instead of the cable company's router, using a new firewall appliance for everything so that people could remote into the server."
Fish has the cable provider's tech support on the line, and the tech asks fish to tell him the cable router's MAC address to verify that fish really is representing the client. Fish does that, and in short order the tech resets the account to a fixed IP address, turns off the cable company's wireless network and moves the modem into bridge mode, so the firewall appliance can handle the routing and wireless.