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Date:      Mon, 15 Aug 2022 10:29:37 +0200 (CEST)
From:      Ronald Klop <ronald-lists@klop.ws>
To:        Benoit Chesneau <benoitc@enki-multimedia.eu>
Cc:        "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org>
Subject:   Re: what to check? no IPV6 pings between nodes on the same switch
Message-ID:  <718207270.67.1660552177215@localhost>
In-Reply-To: <qcer8535Q1qdsyEXRpYZO7cRAnjTNz5qlcjbiwNFg7b_13lzwo15Y0-72_pOdSZnVe2AwHHNBLJbPycVb2SCS-evQV-Of1bgpBRyr1C9RU8=@enki-multimedia.eu>
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Hi,

My rc.conf config has:
ifconfig_genet0_ipv6=3D"inet6 accept_rtadv"

Can you post the output of "ifconfig" and "ipfw show"?
Can you ping the link-local address of the other hosts?

Regards.
Ronald.

=20
Van: Benoit Chesneau <benoitc@enki-multimedia.eu>
Datum: maandag, 15 augustus 2022 08:59
Aan: "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org>
Onderwerp: what to check? no IPV6 pings between nodes on the same switch
>=20
> =20
> I have setup 3 nodes on a fresh Freebsd 13.1-RELEASE-p1. They have the sa=
me gateway and IPS are in same /64. All 3 nodes are on the same switch (mik=
rotik) and same vlan untagged.
>=20
> I can ping them from an external machine through the router/gateway but t=
he nodes can't ping each others. When I run `ndp-a` it only return the gate=
way and the node ipv6 (+ their libks) but not the ips of the other nodes.
>=20
> Previously these nodes wee under linux and were able to ping each others.
>=20
> What could be the issue? What do I need to check?
>=20
> Configuration is pretty straightforward:
> =20
> ```
> hostname=3D"node1.domain.tld"
>=20
> keymap=3D"fr.macbook.kbd"
>=20
> ifconfig_ql0=3D""
>=20
> ifconfig_ql0_ipv6=3D"inet6 <PREFIX>::11/64"
>=20
> ipv6_defaultrouter=3D"<PREFIX>::1"
>=20
> sshd_enable=3D"YES"
>=20
> ntpd_enable=3D"YES"
>=20
> # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
>=20
> dumpdev=3D"AUTO"
>=20
> zfs_enable=3D"YES"
> ```
> =20
> Others machines are `<PREFIX>::12`, `<PREFIX>::13`Sent from Proton Mail f=
or iOS
> =20
> Beno=C3=AEt=20

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<html><head></head><body>Hi,<br />
<br />
My rc.conf config has:<br />
ifconfig_genet0_ipv6=&quot;inet6 accept_rtadv&quot;<br />
<br />
Can you post the output of &quot;ifconfig&quot; and &quot;ipfw show&quot;?<br />
Can you ping the link-local address of the other hosts?<br />
<br />
Regards.<br />
Ronald.<br />
<br />
&nbsp;
<p><strong>Van:</strong> Benoit Chesneau &lt;benoitc@enki-multimedia.eu&gt;<br />
<strong>Datum:</strong> maandag, 15 augustus 2022 08:59<br />
<strong>Aan:</strong> &quot;freebsd-net@FreeBSD.org&quot; &lt;freebsd-net@freebsd.org&gt;<br />
<strong>Onderwerp:</strong> what to check? no IPV6 pings between nodes on the same switch</p>

<blockquote style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: #000000 2px solid; margin-right: 0px">
<div class="MessageRFC822Viewer" id="P">
<div class="MultipartAlternativeViewer">
<div class="TextHTMLViewer" id="P.P.P">
<div>&nbsp;</div>
<span>I&nbsp;have setup 3 nodes on a fresh Freebsd 13.1-RELEASE-p1. They have the same gateway and IPS are in same /64. All 3 nodes are on the same switch (mikrotik) and same vlan untagged.</span><br />
<br />
<span>I can ping them from an external machine through the router/gateway but&nbsp;</span><span>the nodes can't ping each others.</span><span>&nbsp;When I run `ndp-a` it only return the gateway and the node ipv6 (+ their libks) but not the ips of the other nodes.</span><br />
<br />
<span>Previously these nodes wee under linux and were able to ping each others.</span><br />
<br />
<span>What could be the issue? What do I need to check?</span><br />
<br />
<span>Configuration is pretty straightforward:</span>

<div>&nbsp;
<div>```</div>

<div>
<p>hostname=&quot;node1.domain.tld&quot;</p>

<p><span style="color: var(--text-color); background: var(--bg-color);">keymap=&quot;fr.macbook.kbd&quot;</span></p>

<p>ifconfig_ql0=&quot;&quot;</p>

<p>ifconfig_ql0_ipv6=&quot;inet6 &lt;PREFIX&gt;::11/64&quot;</p>

<p>ipv6_defaultrouter=&quot;&lt;PREFIX&gt;::1&quot;</p>

<p>sshd_enable=&quot;YES&quot;</p>

<p>ntpd_enable=&quot;YES&quot;</p>

<p># Set dumpdev to &quot;AUTO&quot; to enable crash dumps, &quot;NO&quot; to disable</p>

<p>dumpdev=&quot;AUTO&quot;</p>

<p>zfs_enable=&quot;YES&quot;</p>
<font color="#141414" face="Segoe UI, Helvetica Neue, Helvetica, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, sans-serif"><span>```</span></font></div>

<div>&nbsp;
<div><span><span>Others machines are `&lt;PREFIX&gt;::12`, `&lt;PREFIX&gt;::13`</span>Sent from Proton Mail for iOS</span></div>
</div>
</div>

<div>&nbsp;</div>

<div><span>Beno&icirc;t&nbsp;</span></div>
</div>
</div>
</div>
</blockquote></body></html>
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