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List: nix-dev
Subject: Re: [Nix-dev] When creating a bridge interface, the bridge doesn't appear
From: Arnold Krille <arnold () arnoldarts ! de>
Date: 2016-06-15 6:11:45
Message-ID: CE7BA773-24BC-4AA1-8F1B-8B20C7CAE48C () arnoldarts ! de
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did you define anything depending on the bridge? that is did you configure anything in networking.interfaces?
- Arnold
Am 15. Juni 2016 02:28:54 MESZ, schrieb Matthew Robbetts <wingfeathera@gmail.com>:
>Hi list,
>
>(I filed an issue at GitHub
>(https://github.com/NixOS/nixpkgs/issues/16230
><https://github.com/NixOS/nixpkgs/issues/16230>), but realized that
>since it's probably a PEBKAC issue, the mailing list might be more
>suitable. Sorry for the cross-post!)
>
>
>I am configuring a new nixOS system. My machine has two ethernet
>interfaces (enp3s0 and enp4s0) and one wireless interface (wlp5s0). I
>want to bridge the wireless with one of the ethernets, so in my
>configuration.nix I add:
>
>networking = {
> ...
> bridges.br0.interfaces = [ "enp4s0" "wlp5s0" ];
> ...
>and run nixos-rebuild switch.
>
>I observe in the output that, among other things, a
>/nix/store/z18i1q0r4i2bn0vkpcz45d10nn0628nf-unit-br0-netdev.service/br0-netdev.service
>is created. However, ifconfig does not show the new bridge interface.
>
>If I manually run:
>systemctl start br0-netdev.service
>
>the bridge interface appears.
>
>Probably I am doing something wrong, but I would have expected the
>bridge to appear immediately as a result of nixos-rebuild switch.
>
>Anyone have an opinion?
>
>
>Thanks,
>Matt
>
>------------------------------------------------------------------------
>
>_______________________________________________
>nix-dev mailing list
>nix-dev@lists.science.uu.nl
>http://lists.science.uu.nl/mailman/listinfo/nix-dev
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[Attachment #5 (text/html)]
<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8" /></head><body \
style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" \
class="">did you define anything depending on the bridge? that is did you configure anything in \
networking.interfaces?<br> <br>
- Arnold<br><br><div class="gmail_quote">Am 15. Juni 2016 02:28:54 MESZ, schrieb Matthew \
Robbetts <wingfeathera@gmail.com>:<blockquote class="gmail_quote" style="margin: 0pt 0pt \
0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> <p \
style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); \
font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color \
Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class="">Hi list,</p><div class="">(I filed an \
issue at GitHub (<a href="https://github.com/NixOS/nixpkgs/issues/16230" \
class="">https://github.com/NixOS/nixpkgs/issues/16230</a>), but realized that since it's \
probably a PEBKAC issue, the mailing list might be more suitable. Sorry for the \
cross-post!)</div><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; \
color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, \
sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class=""><br class="" \
/></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, \
51, 51); font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-ser! if,
'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class="">I am configuring a new \
nixOS system. My machine has two ethernet interfaces (<code style="box-sizing: border-box; \
font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em 0px; \
margin: 0px; background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">enp3s0</code> and <code style="box-sizing: border-box; font-family: \
Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em 0px; margin: 0px; \
background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">enp4s0</code>) and one wireless interface (<code style="box-sizing: border-box; \
font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em 0px; \
margin: 0px;
background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">wlp5s0</code>). I want to bridge the wireless with one of the ethernets, so in my \
configuration.nix I add:</p><pre style="box-sizing: border-box; font-family: Consolas, \
'Liberation Mono', Menlo, Courier, monospace; margin-top: 0px; margin-bottom: 16px; \
line-height: 1.45; word-wrap: normal; padding: 16px; overflow: auto; background-color: rgb(247, \
247, 247); border-top-left-radius: 3px; border-top-right-radius: 3px; \
border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; color: rgb(51, 51, 51);" \
class=""><code style="box-sizing: border-box; font-family: Consolas, 'Liberation Mono', Menlo, \
Courier, monospace; padding: 0px; margin: 0px; background-color: transparent; \
border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; \
border-bottom-left-radius: 3px; word-! break:
normal; border: 0px; display: inline; overflow: visible; line-height: inherit; word-wrap: \
normal;" class="">networking = {
...
bridges.br0.interfaces = [ "enp4s0" "wlp5s0" ];
...
</code></pre><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: \
rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, \
sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class="">and \
run <code style="box-sizing: border-box; font-family: Consolas, 'Liberation Mono', Menlo, \
Courier, monospace; padding: 0.2em 0px; margin: 0px; background-color: rgba(0, 0, 0, \
0.0392157); border-top-left-radius: 3px; border-top-right-radius: 3px; \
border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" class="">nixos-rebuild \
switch</code>.</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; \
color: rgb(51, 51, 51); font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, \
sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class="">I observe in \
the output that, among other things, a<br style="box-sizing: border-box;" class="" /><code \
style="box-sizin! g:
border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em \
0px; margin: 0px; background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">/nix/store/z18i1q0r4i2bn0vkpcz45d10nn0628nf-unit-br0-netdev.service/br0-netdev.service</code><br \
style="box-sizing: border-box;" class="" />is created. However, <code style="box-sizing: \
border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em \
0px; margin: 0px; background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">ifconfig</code> does not show the new bridge interface.</p><p style="box-sizing: \
border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: \
'Helvetica Neue', Helvetica, 'Segoe UI', ! Arial,
freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';" class="">If I \
manually run:<br style="box-sizing: border-box;" class="" /><code style="box-sizing: \
border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em \
0px; margin: 0px; background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">systemctl start br0-netdev.service</code></p><p style="box-sizing: border-box; \
margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: 'Helvetica Neue', \
Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', \
'Segoe UI Symbol';" class="">the bridge interface appears.</p><p style="box-sizing: border-box; \
margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: 'Helvetica Neue', \
Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color ! Emoji',
'Segoe UI Emoji', 'Segoe UI Symbol';" class="">Probably I am doing something wrong, but I would \
have expected the bridge to appear immediately as a result of <code style="box-sizing: \
border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; padding: 0.2em \
0px; margin: 0px; background-color: rgba(0, 0, 0, 0.0392157); border-top-left-radius: 3px; \
border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;" \
class="">nixos-rebuild switch</code>.</p><div class="">Anyone have an opinion?</div><div \
class=""><br class="" /></div><div class=""><br class="" /></div><div \
class="">Thanks,</div><div class="">Matt</div><p style="margin-top: 2.5em; margin-bottom: 1em; \
border-bottom: 1px solid #000"></p><pre class="k9mail"><hr /><br />nix-dev mailing list<br \
/>nix-dev@lists.science.uu.nl<br /><a \
href="http://lists.science.uu.nl/mailman/listinfo/nix-dev">http://lists.science.uu.nl/mailman/listinfo/nix-dev</a><br
/></pre></blockquote></div><br>
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