If you want to drop the custom MAC address and switch back to the router's default WAN MAC address, you could do that at some point-but I'd give it a day or two, since that's the typical DHCP address timeout. Press 'Apply', and wait for the router to restart before turning the cable modem back on. You can either clone your current computer's MAC address into the field by clicking 'MAC Clone', or enter a valid MAC address for some other device here. On my own router, an ASUS, there's a simple method you can use to change the MAC address-you go into the WAN settings, then under 'Special Requirement from ISP', there's a custom MAC address field. The main thing is, if the cable modem (and thus your ISP's endpoint) sees a new MAC address for the device attached to the modem, it will assign a new IP address via DHCP. Getting a new IP addressĪt least with the DOCSIS 3.1 modem I'm using, the overall process is as follows:Īs an alternative for #2, you could just plug a different device directly into the cable modem. That makes home hosting more annoying sometimes, since I have to deal with tunnels and dynamic DNS, but it also means I can hop to a new IP address if one is under attack. Lucky for me, I don't pay for a static IP address. So it was time for me to recycle my home IP. I have things relatively locked down here-more on homelab security coming soon!-but a DDoS isn't something most residential ISPs take too kindly. Recently this website's been the target of malicious DDoS attacks.īut after accidentally leaking my home IP address in some network benchmarking clips in a recent YouTube video, the same attacker (I assume) decided to point the DDoS cannon at my home IP.
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