See also MAC address spoofing.Įxplicit Congestion Notification (ECN) may cause traffic problems with old/bad routers. If this method does not work, you will need to clone the MAC address of the original machine. Once the cable modem has rebooted and gone fully online again (indicator lights settled down), reboot the newly connected PC so that it makes a DHCP request, or manually make it request a new DHCP lease. To reset the cable modem so that it will recognise the new PC, you must power the cable modem off and on again. Thus if you swap one PC for another (or for a router), the new PC (or router) will not work with the cable modem, because the new PC (or router) has a MAC address different from the old one. Once the cable modem has learned the MAC address of the first PC or equipment that talks to it, it will not respond to another MAC address in any way. Some cable ISPs (Vidéotron for example) have the cable modem configured to recognize only one client PC, by the MAC address of its network interface.
For example, enable Troubleshooting Swapping computers on the cable modem Note: netctl includes otherwise you can use from the ifplugd package. If udev is not detecting and loading the proper module automatically during bootup, see Kernel module#Automatic module loading with systemd. You may search the AUR for the module name.
#Arch linux find mac address driver#
If you get an error saying that the module was not found, it is possible that the driver is not included in the Arch kernel. Once you know which module to use, try to load it manually. Some common modules are 8139too for cards with a Realtek chipset, or sis900 for cards with a SiS chipset. Search the internet for the right module/driver for your chipset. Otherwise, you will need to know which module is needed for your particular model.
Skip the next section if the driver was loaded successfully.
#Arch linux find mac address full#
For example:Ītl1 0000:02:00.0: eth0 link is up 100 Mbps full duplex Next, check that the driver was loaded by running dmesg | grep module_name as root.
$ lspci -v 02:00.0 Ethernet controller: Attansic Technology Corp. It should tell you which kernel module contains the driver for your network device. Check the "Ethernet controller" entry (or similar) from the lspci -v output. Udev should detect your network interface controller (NIC) and automatically load the necessary kernel module at startup.
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