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For me at least, that means calling support and giving them the new MAC address.
by miked85 4y ago
For me at least, that means calling support and giving them the new MAC address.
- xp84 4y agoAt least in some systems, assuming you have a separate modem device and router, only the modem is involved in the authentication/billing which is where they care about the modem's MAC to identify you. If your router's MAC changes, DHCP would issue it a new IP. My modest understanding is that the modem is operating at a lower layer of the networking stack, so the DHCP server involved in actually issuing you an IP, higher up in the stack, doesn't need to worry about identifying you -- it's happy to give anybody an IP because it knows that if it can see you, the modem-level authentication has confirmed you're someone who is paying your Internet bill. I used to run an open source router a long time ago, which made changing your router WAN MAC something you could easily script.
- zamnos 4y agoWho's your ISP? That would make me worried. https://xkcd.com/463/ https://xkcd.com/463/
- miked85 4y agoCox. At least in the past when I upgraded a modem, it required me calling support to give them the MAC address.