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<base href="https://bugzilla.netfilter.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [netdev] dropping ether type vlan frames drops ICMPv6 type 134"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1468">1468</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[netdev] dropping ether type vlan frames drops ICMPv6 type 134
</td>
</tr>
<tr>
<th>Product</th>
<td>nftables
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>other
</td>
</tr>
<tr>
<th>OS</th>
<td>Debian GNU/Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P5
</td>
</tr>
<tr>
<th>Component</th>
<td>nft
</td>
</tr>
<tr>
<th>Assignee</th>
<td>pablo@netfilter.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vtolkm@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>kernel 5.9.0-rc6 armv7l | nft 0.9.6
___
table netdev filter {
set et {
typeof ether type
flags constant
counter
elements = { vlan }
}
chain input {
type filter hook ingress device "eth2" priority -500; policy
accept;
ether type @et log prefix "nd et DROP" flags all drop
}
}
The ISP is multi-casting ICMPv6 type 134 on the subscriber line, however
filtering vlan frames is dropping ICMPv6 type 134, the counter increases and
the log exhibits:
nd et DROPIN=eth2 OUT= MACSRC=78:ba:f9:73:f5:74 MACDST=33:33:00:00:00:01
MACPROTO=86dd SRC=fe80:0000:0000:0000:7aba:f9ff:fe73:f574
DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=72 TC=224 HOPLIMIT=255
FLOWLBL=0 PROTO=ICMPv6 TYPE=134 CODE=0</pre>
</div>
</p>
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