Date: Mon, 15 Aug 2022 12:14:31 +0200 From: John Hay <jhay@meraka.org.za> 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: <CAGv8uar9BnYycuQMsGysrEi49ZfsJA-TUpLpGxjvnTum_AejpA@mail.gmail.com> In-Reply-To: <zfer6kfZBYJkkTe-22_SStLs0QMsHdJe3WQV6h03qY2nDNBLpKopPsXiOPChXNNqZVp7X_U2RptGsA12GHJjzJD7w3COHfy6Ri1Q3F9820A=@enki-multimedia.eu> References: <qcer8535Q1qdsyEXRpYZO7cRAnjTNz5qlcjbiwNFg7b_13lzwo15Y0-72_pOdSZnVe2AwHHNBLJbPycVb2SCS-evQV-Of1bgpBRyr1C9RU8=@enki-multimedia.eu> <718207270.67.1660552177215@localhost> <hMqENjOsAd2Dv-OG6Ge2FxSuQuyPc73a8Y4Kp2FzSdldA7QzFJGlV2AKaQjuHd3Q-k7I8uRLZ8eR44LJ9FVRdKXQ5-I623xO8BrA5PPnU38=@enki-multimedia.eu> <GQsCACVdQaleA6RlMjW5LebnRhR9jPTsyWhhZPvVA0SOLj9keYDaUQ_dcGLZB3etCMhk7hRjg13epmaQtF0rrWpPeSZ3QkPrWoL43UZKOYg=@enki-multimedia.eu> <1540677665.110.1660556486732@localhost> <GyTA2rUetn_DdIzJv1S7TSTlgJrbDSwo42Egc0kUsUTmCcHfeZ0MXCBtqqaUJgV4ygPEqsmKtjrbyhSOwM0HQgFhMDF5UPrmxL4psPBcd20=@enki-multimedia.eu> <zfer6kfZBYJkkTe-22_SStLs0QMsHdJe3WQV6h03qY2nDNBLpKopPsXiOPChXNNqZVp7X_U2RptGsA12GHJjzJD7w3COHfy6Ri1Q3F9820A=@enki-multimedia.eu>
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Hi Benoit,
It will allow multicast packets to go through, which IPv6 depends on. Maybe
there is a problem setting up the multicast filter for that driver / card.
Regards
John
On Mon, 15 Aug 2022 at 12:08, Benoit Chesneau <benoitc@enki-multimedia.eu>
wrote:
> So I noticed that tcpdump was enabling the "promiscuous" mode to the
> interface. So I tried to do it manually: `ifconfig ql0 promisc` and ping
> worked even after disabling this mode `ifconfig ql0 -promisc`.
>
> What does happen when the promiscuous mode is enabled? I'm not sure to
> understand what is the issue :/
>
> Beno=C3=AEt
> ------- Original Message -------
> On Monday, August 15th, 2022 at 11:53, Benoit Chesneau <
> benoitc@enki-multimedia.eu> wrote:
>
> Unfortunately I get the same results with rtsold enabled and the interfac=
e
> up. It doesn't seems related to teh switch since link-local ping work :/
>
>
> Beno=C3=AEt
> ------- Original Message -------
> On Monday, August 15th, 2022 at 11:41, Ronald Klop <ronald-lists@klop.ws>
> wrote:
>
> Set rtsold_enable=3D"YES" in rc.conf and restart.
> Does that help?
>
> "
> DESCRIPTION
> rtsold is the daemon program to send ICMPv6 Router Solicitation
> messages
> on the specified interfaces. If a node (re)attaches to a link, rtso=
ld
> sends some Router Solicitations on the link destined to the link-loc=
al
> scope all-routers multicast address to discover new routers and to g=
et
> non link-local addresses.
>
> rtsold should be used on IPv6 hosts (non-router nodes) only.
> "
>
> Btw: accept_rtadv makes "rtsol" to run once on startup if you set it in
> rc.conf and use it to boot the machine. (BTW: for me this does not work
> well enough, so I run rtsold explicitly.) Setting accept_rtadv by ifconfi=
g
> will not run rtsol.
>
> Regards,
> Ronald.
>
>
>
> *Van:* Benoit Chesneau <benoitc@enki-multimedia.eu>
> *Datum:* maandag, 15 augustus 2022 11:25
> *Aan:* Benoit Chesneau <benoitc@enki-multimedia.eu>
> *CC:* Ronald Klop <ronald-lists@klop.ws>, "freebsd-net@FreeBSD.org" <
> freebsd-net@freebsd.org>
> *Onderwerp:* Re: what to check? no IPV6 pings between nodes on the same
> switch
>
> OK here is the weird but interesting thing. When I start to capture icmp=
6
> packets using tcpdump `tcpdump -i ql0 icmp6` then ping6 starts to work.
> Even after stopping the capture. Any idea what could it be ?
>
> Beno=C3=AEt
> ------- Original Message -------
> On Monday, August 15th, 2022 at 10:50, Benoit Chesneau <
> benoitc@enki-multimedia.eu> wrote:
>
>
> Hi,
>
> Thanks for the help :) The nodes can indeed ping each others using the
> link-local address. What does it means? I tested to set `accept_rtadv`
> using the ifconfig command without much success.
>
>
> Here are the ifconfigs, the prefix is the same for all To be sure, I
> replaced the content by <PREFIX> using sed.
>
> node 1:
>
> ```
> $ ifconfig ql0
> ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
>
> options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO>
> ether b4:7a:f1:7a:9c:10
> inet6 <PREFIX>::11 prefixlen 64
> inet6 fe80::b67a:f1ff:fe7a:9c10%ql0 prefixlen 64 scopeid 0x1
> media: Ethernet autoselect (25GBase-SR <full-duplex>)
> status: active
> nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
> ```
>
> node 2:
>
> ```
> $ ifconfig ql0
> ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
>
> options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO>
> ether b4:7a:f1:7a:99:52
> inet6 <PREFIX>::12 prefixlen 64
> inet6 fe80::b67a:f1ff:fe7a:9952%ql0 prefixlen 64 scopeid 0x1
> media: Ethernet autoselect (25GBase-SR <full-duplex>)
> status: active
> nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
> ```
>
> node 3
> ```
> ifconfig ql0
> ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
>
> options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS=
UM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO>
> ether b4:7a:f1:18:ff:d8
> inet6 <PREFIX>::13 prefixlen 64
> inet6 fe80::b67a:f1ff:fe18:ffd8%ql0 prefixlen 64 scopeid 0x1
> media: Ethernet autoselect (25GBase-SR <full-duplex>)
> status: active
> nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
> ```
>
>
> ------- Original Message -------
> On Monday, August 15th, 2022 at 10:29, Ronald Klop <ronald-lists@klop.ws>
> wrote:
>
>
> 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.
>
>
>
> *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 switc=
h
>
>
> I 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.
>
> 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
> gateway and the node ipv6 (+ their libks) but not the ips of the other
> nodes.
>
> Previously these nodes wee under linux and were able to ping each others.
>
> What could be the issue? What do I need to check?
>
> Configuration is pretty straightforward:
>
> ```
>
> hostname=3D"node1.domain.tld"
>
> keymap=3D"fr.macbook.kbd"
>
> ifconfig_ql0=3D""
>
> ifconfig_ql0_ipv6=3D"inet6 <PREFIX>::11/64"
>
> ipv6_defaultrouter=3D"<PREFIX>::1"
>
> sshd_enable=3D"YES"
>
> ntpd_enable=3D"YES"
>
> # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
>
> dumpdev=3D"AUTO"
>
> zfs_enable=3D"YES"
> ```
>
> Others machines are `<PREFIX>::12`, `<PREFIX>::13`Sent from Proton Mail
> for iOS
>
> Beno=C3=AEt
>
>
>
>
--0000000000007f075905e644e64a
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<div dir=3D"ltr"><div>Hi Benoit,</div><div><br></div><div>It will allow mul=
ticast packets to go through, which IPv6 depends on. Maybe there is a probl=
em setting up the multicast filter for that driver / card.</div><div><br></=
div><div>Regards</div><div><br></div><div>John</div><div><br></div></div><b=
r><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, =
15 Aug 2022 at 12:08, Benoit Chesneau <<a href=3D"mailto:benoitc@enki-mu=
ltimedia.eu">benoitc@enki-multimedia.eu</a>> wrote:<br></div><blockquote=
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px so=
lid rgb(204,204,204);padding-left:1ex"><div style=3D"font-family:arial;font=
-size:14px">So I noticed that tcpdump was enabling the "promiscuous&qu=
ot; mode =C2=A0to the interface. So I tried to do it manually: `ifconfig ql=
0 promisc` and ping worked even after disabling this mode <span style=3D"ba=
ckground-color:rgb(255,255,255);display:inline">`ifconfig ql0 -promisc`.</s=
pan></div><div style=3D"font-family:arial;font-size:14px"><span style=3D"ba=
ckground-color:rgb(255,255,255);display:inline"><br></span></div><div style=
=3D"font-family:arial;font-size:14px">What does happen when the promiscuous=
mode is enabled? I'm not sure to understand what is the issue :/</div>=
<div style=3D"font-family:arial;font-size:14px"><br></div>
<div style=3D"font-family:arial;font-size:14px">
<div>
<div style=3D"font-style:normal;font-weight:normal;letter-spacing:n=
ormal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0=
px;text-decoration:none;color:rgb(0,0,0);font-family:Helvetica;font-size:12=
px">Beno=C3=AEt=C2=A0</div></div></div><div>
------- Original Message -------<br>
On Monday, August 15th, 2022 at 11:53, Benoit Chesneau <<a href=
=3D"mailto:benoitc@enki-multimedia.eu" target=3D"_blank">benoitc@enki-multi=
media.eu</a>> wrote:<br><br>
<blockquote type=3D"cite">
<div style=3D"font-family:arial;font-size:14px">Unfortunately I=
get the same results with rtsold enabled and the interface up.=C2=A0 It do=
esn't seems related to teh switch since link-local ping work :/</div><d=
iv style=3D"font-family:arial;font-size:14px"><br></div><div style=3D"font-=
family:arial;font-size:14px"><br></div>
<div style=3D"font-family:arial;font-size:14px">
<div>
<div style=3D"font-style:normal;font-weight:normal;letter-spacing:n=
ormal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0=
px;text-decoration:none;color:rgb(0,0,0);font-family:Helvetica;font-size:12=
px">Beno=C3=AEt</div></div></div><div>
------- Original Message -------<br>
On Monday, August 15th, 2022 at 11:41, Ronald Klop <<a href=3D"m=
ailto:ronald-lists@klop.ws" target=3D"_blank">ronald-lists@klop.ws</a>> =
wrote:<br><br>
<blockquote type=3D"cite">
Set rtsold_enable=3D"YES" in rc.conf and restart.<br>
Does that help?<br>
<br>
"<br>
DESCRIPTION<br>
=C2=A0=C2=A0=C2=A0=C2=A0 rtsold is the daemon program to send ICMPv6 Router=
Solicitation messages<br>
=C2=A0=C2=A0=C2=A0=C2=A0 on the specified interfaces.=C2=A0 If a node (re)a=
ttaches to a link, rtsold<br>
=C2=A0=C2=A0=C2=A0=C2=A0 sends some Router Solicitations on the link destin=
ed to the link-local<br>
=C2=A0=C2=A0=C2=A0=C2=A0 scope all-routers multicast address to discover ne=
w routers and to get<br>
=C2=A0=C2=A0=C2=A0=C2=A0 non link-local addresses.<br>
<br>
=C2=A0=C2=A0=C2=A0=C2=A0 rtsold should be used on IPv6 hosts (non-router no=
des) only.<br>
"<br>
<br>
Btw: accept_rtadv makes "rtsol" to run once on startup if you set=
it in rc.conf and use it to boot the machine. (BTW: for me this does not w=
ork well enough, so I run rtsold explicitly.) Setting accept_rtadv by ifcon=
fig will not run rtsol.<br>
<br>
Regards,<br>
Ronald.<br>
<br>
=C2=A0
<p><strong>Van:</strong> Benoit Chesneau <<a href=3D"mailto:benoitc@enki=
-multimedia.eu" target=3D"_blank">benoitc@enki-multimedia.eu</a>><br>
<strong>Datum:</strong> maandag, 15 augustus 2022 11:25<br>
<strong>Aan:</strong> Benoit Chesneau <<a href=3D"mailto:benoitc@enki-mu=
ltimedia.eu" target=3D"_blank">benoitc@enki-multimedia.eu</a>><br>
<strong>CC:</strong> Ronald Klop <<a href=3D"mailto:ronald-lists@klop.ws=
" target=3D"_blank">ronald-lists@klop.ws</a>>, "freebsd-net@FreeBSD=
.org" <<a href=3D"mailto:freebsd-net@freebsd.org" target=3D"_blank"=
>freebsd-net@freebsd.org</a>><br>
<strong>Onderwerp:</strong> Re: what to check? no IPV6 pings between nodes =
on the same switch</p>
<blockquote style=3D"padding-right:0px;padding-left:5px;margin-left:5px;bor=
der-left:2px solid rgb(0,0,0);margin-right:0px">
<div id=3D"gmail-m_-5598946522798820636P">
<div>
<div id=3D"gmail-m_-5598946522798820636P.P.P">
<div style=3D"font-family:arial;font-size:14px">OK here is the weird but in=
teresting thing. When I start =C2=A0to capture icmp6 packets using tcpdump =
`tcpdump -i ql0 icmp6` then ping6 starts to work.=C2=A0 Even after stopping=
the capture. Any idea what could it be ?</div>
<div style=3D"font-family:arial;font-size:14px">=C2=A0</div>
<div style=3D"font-family:arial;font-size:14px">
<div>
<div style=3D"font-style:normal;font-weight:normal;letter-spacing:normal;te=
xt-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-=
decoration:none;color:rgb(0,0,0);font-family:Helvetica;font-size:12px">Beno=
=C3=AEt=C2=A0</div>
</div>
</div>
<div>------- Original Message -------<br>
On Monday, August 15th, 2022 at 10:50, Benoit Chesneau <<a href=3D"mailt=
o:benoitc@enki-multimedia.eu" target=3D"_blank">benoitc@enki-multimedia.eu<=
/a>> wrote:<br>
=C2=A0
<blockquote>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">Hi,</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">Thanks for=
the help :) The nodes can indeed ping each others using the link-local add=
ress. What does it means? I tested to set `<span>accept_rtadv` using the if=
config command without much success.</span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">Here are t=
he ifconfigs, the prefix is the same for all To be sure, I =C2=A0replaced t=
he content by <PREFIX> using sed.</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">node 1:</d=
iv>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">```</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)"><span>=C2=
=A0$ ifconfig ql0</span>
<div><span>ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> =
metric 0 mtu 1500</span></div>
<div><span>options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_M=
TU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO></span></div>
<div><span>ether b4:7a:f1:7a:9c:10</span></div>
<div><span>inet6 <PREFIX>::11 prefixlen 64</span></div>
<div><span>inet6 fe80::b67a:f1ff:fe7a:9c10%ql0 prefixlen 64 scopeid 0x1</sp=
an></div>
<div><span>media: Ethernet autoselect (25GBase-SR <full-duplex>)</spa=
n></div>
<div><span>status: active</span></div>
<span> nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL></span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">```</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">node 2:</d=
iv>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)"><span styl=
e=3D"background-color:rgb(255,255,255)">```</span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)"><span>=C2=
=A0$ ifconfig ql0</span>
<div><span>ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> =
metric 0 mtu 1500</span></div>
<div><span>options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_M=
TU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO></span></div>
<div><span>ether b4:7a:f1:7a:99:52</span></div>
<div><span>inet6 <PREFIX>::12 prefixlen 64</span></div>
<div><span>inet6 fe80::b67a:f1ff:fe7a:9952%ql0 prefixlen 64 scopeid 0x1</sp=
an></div>
<div><span>media: Ethernet autoselect (25GBase-SR <full-duplex>)</spa=
n></div>
<div><span>status: active</span></div>
<span> nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL></span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">```</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)"><span>node=
3</span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">```</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)"><span>ifco=
nfig ql0</span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">
<div><span>ql0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> =
metric 0 mtu 1500</span></div>
<div><span>options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_M=
TU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO></span></div>
<div><span>ether b4:7a:f1:18:ff:d8</span></div>
<div><span>inet6 <PREFIX>::13 prefixlen 64</span></div>
<div><span>inet6 fe80::b67a:f1ff:fe18:ffd8%ql0 prefixlen 64 scopeid 0x1</sp=
an></div>
<div><span>media: Ethernet autoselect (25GBase-SR <full-duplex>)</spa=
n></div>
<div><span>status: active</span></div>
<span>nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL></span></div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">```</div>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div style=3D"font-family:arial;font-size:14px;color:rgb(0,0,0)">=C2=A0</di=
v>
<div>------- Original Message -------<br>
On Monday, August 15th, 2022 at 10:29, Ronald Klop <<a href=3D"mailto:ro=
nald-lists@klop.ws" target=3D"_blank">ronald-lists@klop.ws</a>> wrote:<b=
r>
=C2=A0
<blockquote>Hi,<br>
<br>
My rc.conf config has:<br>
ifconfig_genet0_ipv6=3D"inet6 accept_rtadv"<br>
<br>
Can you post the output of "ifconfig" and "ipfw show"?<=
br>
Can you ping the link-local address of the other hosts?<br>
<br>
Regards.<br>
Ronald.<br>
<br>
=C2=A0
<p><strong>Van:</strong> Benoit Chesneau <<a href=3D"mailto:benoitc@enki=
-multimedia.eu" target=3D"_blank">benoitc@enki-multimedia.eu</a>><br>
<strong>Datum:</strong> maandag, 15 augustus 2022 08:59<br>
<strong>Aan:</strong> "freebsd-net@FreeBSD.org" <<a href=3D"ma=
ilto:freebsd-net@freebsd.org" target=3D"_blank">freebsd-net@freebsd.org</a>=
><br>
<strong>Onderwerp:</strong> what to check? no IPV6 pings between nodes on t=
he same switch</p>
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der-left:2px solid rgb(0,0,0);margin-right:0px">
<div id=3D"gmail-m_-5598946522798820636P">
<div>
<div id=3D"gmail-m_-5598946522798820636P.P.P">
<div>=C2=A0</div>
<span>I=C2=A0have setup 3 nodes on a fresh Freebsd 13.1-RELEASE-p1. They ha=
ve the same gateway and IPS are in same /64. All 3 nodes are on the same sw=
itch (mikrotik) and same vlan untagged.</span><br>
<br>
<span>I can ping them from an external machine through the router/gateway b=
ut=C2=A0</span><span>the nodes can't ping each others.</span><span>=C2=
=A0When 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 oth=
ers.</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>=C2=A0
<div>```</div>
<div>
<p>hostname=3D"node1.domain.tld"</p>
<p><span>keymap=3D"fr.macbook.kbd"</span></p>
<p>ifconfig_ql0=3D""</p>
<p>ifconfig_ql0_ipv6=3D"inet6 <PREFIX>::11/64"</p>
<p>ipv6_defaultrouter=3D"<PREFIX>::1"</p>
<p>sshd_enable=3D"YES"</p>
<p>ntpd_enable=3D"YES"</p>
<p># Set dumpdev to "AUTO" to enable crash dumps, "NO" =
to disable</p>
<p>dumpdev=3D"AUTO"</p>
<p>zfs_enable=3D"YES"</p>
<font face=3D"Segoe UI, Helvetica Neue, Helvetica, Roboto, Oxygen, Ubuntu, =
Cantarell, Fira Sans, Droid Sans, sans-serif" color=3D"#141414"><span>```</=
span></font></div>
<div>=C2=A0
<div><span><span>Others machines are `<PREFIX>::12`, `<PREFIX>:=
:13`</span>Sent from Proton Mail for iOS</span></div>
</div>
</div>
<div>=C2=A0</div>
<div><span>Beno=C3=AEt=C2=A0</span></div>
</div>
</div>
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