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I experienced a strange error. If I tried to connect to the internet via WiFi, everything went well except the DHCP transaction. dhclient prints this error message Bind socket to interface: No such device Switched to static IP (set in the client e.g. Wicd) and killed the dhclient process => Connection is established without issues. There are no further errors beside said dhclient error.

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Nice coincidence, i just stumbled over this problem here tonight. My "problem" are unique device names, my wifi dongle is renamed from wlan0 to wlx112233445566 (with the mac address). This device name seems to be too long for dhclient. (Now that's robust coding, is it?)

If i keep the kernel from renaming the wifi device (by udev rule), dhclient is happy with the device name wlan0 and this strange error disappears.

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  • Exactly the solution! Who would expect dhclient to be coded that bad, so their buffer for the interface name would overflow. Big thank you!
    – DBX12
    Mar 30, 2017 at 7:17
  • Update: Bug in the Debian Bug Tracker is filed
    – DBX12
    Mar 30, 2017 at 9:12

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