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For your use case (let's take the example of "The laptop is connected most of the time to the camera to watch my dog remotely on wlan0 and connected to the Internet on eth0, but every now and then I'd like to take my laptop into the library to use Google using ẁlan0 as the dog will follow me there anyway and I can watch it in RL") I see two options that will ...


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Please correct me if I'm wrong or if there is a better or more user-friendlier way to configure networking with dualstack IPv4/IPv6 on Ubuntu. Apparently checking the Require IPv4 addressing for this connection to complete does what I wanted: Try to configure both protocols and ensure that an IPv4 is configured for the host, don't just stop the ...


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Setting an empty hostname (which is contained in /etc/hostname) works for at least Ubuntu 14.04 (just be sure to renew your DHCP-lease or restart of course). Then as an optional step - if you care about messages like unable to resolve host <hostname> - you would have to change /etc/hosts dynamically to point your loopback address to the acquired ...


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What you've probably run into is an auto-negotiation issue. (as no wiresharking has been done, hard to tell, but that's what it smells like.) These used to be more common when Ethernet moved from 10 to 100 MBit a few years ago when dinosaurs roamed the Earth. So start of with an ethtool --change eth0 autoneg off speed 100 duplex half and then a: sudo ...


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Here are couple of suggestions, but by no means definitive answers: Try different dhcp client If you search with apt-cache search dhcp | less, you will see quite a few alternatives to dhcp that comes by default. For instance, I'd suggest getting dhcpcd. I'm not sure if NetworkManager changes it's settings automatically once you install dhcpcd, but I'd ...


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I contacted the seller, Conceptronic, and they said this specific device is a dump switch and cannot have the protocol changed or tweaked.



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