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"name" : "Quick nmcli notes",
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"headline" : "Quick nmcli notes",
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"description" : "This is a quick post so I can remember these details.\nSo, on the R810, I am currently running ArchLinux, which uses by default NetworkManager, which I have a love\/hate relationship with. At my last job, I recommended removing it from our servers, as under RHEL6, it does very odd things to the network and is hard to manage. I have heard that it is better under RHEL7. But, it does let you do some really cool things.",
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"datePublished": "2017-02-16 19:38:42 -0700 -0700",
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<span class="date">16 February</span> <span> / </span>
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<a href="https://www.duckland.org/" title="Posts by Don Harper" rel="author">Don Harper</a>
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<div class='entry-header'>
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<h1 class='entry-title'> Quick nmcli notes</h1>
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<article>
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<p>This is a quick post so I can remember these details.</p>
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<p>So, on the <a href="/tags/r810/">R810</a>, I am currently running <a href="https://archlinux.org">ArchLinux</a>, which uses by default <a href="https://wiki.archlinux.org/index.php/NetworkManager">NetworkManager</a>, which I have a love/hate relationship with. At my last job, I recommended removing it from our servers, as under <a href="https://www.redhat.com">RHEL6</a>, it does very odd things to the network and is hard to manage. I have heard that it is better under RHEL7. But, it does let you do some really cool things. On the R810, there is a cellular modem, and on previous installes, I have had it configured and scripted using <strong>nmcli</strong> to easily bring up and down the cellular connections.</p>
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<p>The problem I am facing now is that my current DHCP server for the house does not let me provide two MAC Address for a single IP, so when I dock the R810, it gets a different IP address than when it is on WiFi. Very annoying. Also, for some reason, it would prefer to use WiFi when the ethernet connection was present, thus giving me a slower connection.</p>
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<p>The documentation I found was a bit light in examples and/or dated (I am running version 1.6.2 of NetworkManager, and the examples were from 1.2.x or 1.4.x, which did not work). So, with a bit of expermenting, I finally got it fixed to:</p>
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<ul>
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<li>Chose the ethernet connection over the Wifi when both are present</li>
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<li>‘Clone’ the MAC address of the Wifi NIC to the ethernet NIC</li>
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</ul>
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<p>Here are the commands. <strong>local</strong> is what I called the local ethernet connection, and <strong>home-wifi</strong> is what I call the house Wifi Network.</p>
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<ul>
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<li>To set the MAC adress:</li>
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</ul>
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<blockquote>
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<p>nmcli connection modify local ethernet.cloned-mac-address aa:bb:cc:dd:ee:ff</p>
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</blockquote>
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<ul>
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<li>To set the connection priorities:</li>
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</ul>
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<blockquote>
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<p>nmcli connection modify local connection.autoconnect-priority 999<br>
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nmcli connection modify home-wifi connection.autoconnect-priority 999</p>
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</blockquote>
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<a href="/categories/unix" title="View all posts in unix">unix</a>
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<a href="/categories/sa" title="View all posts in sa">sa</a>
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<a href="/tags/linux" title="View all posts tagged linux">linux</a>
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<a href="/tags/r810" title="View all posts tagged R810">R810</a>
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<img alt='Don Harper' src="https://www.gravatar.com/avatar/343531b2be7fcd30e48f5c07dcd2176f?s=100&d=identicon" class='avatar avatar-72 photo' height='72' width='72'>
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<span>
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Written by:<a href="https://www.duckland.org/" title="Posts by Don Harper" rel="author">Don Harper</a> </span>
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<p>Don is a computer guy stumbling through life trying to raise his kids and take some pictures</p>
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