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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - IPv6 Gateway cannot be link local"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90831">90831</a>
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<th>Summary</th>
<td>IPv6 Gateway cannot be link local
</td>
</tr>
<tr>
<th>Product</th>
<td>systemd
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>general
</td>
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<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>mh+freedesktop-bugzilla@zugschlus.de
</td>
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<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
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<p>
<div>
<pre>Hi,
in IPv6, it is extremely common that a gateway is offered on a link local IP
address, very often fe80::1. To manually configure this (for example on a
router that does by definition not learn IP addresses / routes / prefixes via
SLAAC), one would need to write
Gateway=fe80::1%eth0
in /etc/systemd/network/foo.network. That syntax is not accepted, leads to a
rather misleading
"rtnl: received address message without valid ifindex, ignoring"
in the log and no route.
To add gold plating, maybe a macro like $IFNAME would be automatically set to
that
Gateway=fe80::1%$IFNAME
would become possible.
This is a rather bad omission since it makes an extremely common configuration
pattern in IPv6 networks impossible.
Greetings
Marc</pre>
</div>
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