Re: IPv6 Issues with thunderbolt-net driver?

Alex Balcanquall <[email protected]> Wed, 6 Sep 2023 17:01:25 +0000
Newsgroups gmane.linux.debian.devel.ipv6
Message-ID <MN2PR18MB257415152AA48EDD3E1CB53CDAEFA@MN2PR18MB2574.namprd18.prod.outlook.com>
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root@pve1:~# ip -s -s link show en06


PVE1 (sender)

root@pve1:~# ip -s -s link show en06
7: en06: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state=
 UP mode DEFAULT group default qlen 1000
    link/ether 02:1a:44:65:db:e0 brd ff:ff:ff:ff:ff:ff
    RX:   bytes  packets errors dropped  missed   mcast
    19047333241 20301503      0       0       0       0
    RX errors:    length    crc   frame    fifo overrun
                       0      0       0       0       0
    TX:   bytes  packets errors dropped carrier collsns
    15558035141 18392655      7       0       0       0
    TX errors:   aborted   fifo  window heartbt transns
                       0      0       0       0       2


PVE2 (destination)
root@pve2:~# ip -s -s link show en05
74: en05: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast stat=
e UP mode DEFAULT group default qlen 1000
    link/ether 02:8e:95:f1:62:1a brd ff:ff:ff:ff:ff:ff
    RX:   bytes  packets errors dropped  missed   mcast
    15561305384 19172991      0       0       0       0
    RX errors:    length    crc   frame    fifo overrun
                       0      0       0       0       0
    TX:   bytes  packets errors dropped carrier collsns
    19050263184 18347026      0       0       0       0
    TX errors:   aborted   fifo  window heartbt transns
                       0      0       0       0       2

So straight after the PVE1 test i did this.... does this mean they were dro=
pped before the wire?

root@pve1:~# ssh root@2600:a801:830:81::82
^C
root@pve1:~# ip -s -s link show en06
7: en06: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65520 qdisc pfifo_fast state=
 UP mode DEFAULT group default qlen 1000
    link/ether 02:1a:44:65:db:e0 brd ff:ff:ff:ff:ff:ff
    RX:   bytes  packets errors dropped  missed   mcast
    19053852086 20311446      0       0       0       0
    RX errors:    length    crc   frame    fifo overrun
                       0      0       0       0       0
    TX:   bytes  packets errors dropped carrier collsns
    15565251706 18402383     11       0       0       0
    TX errors:   aborted   fifo  window heartbt transns
                       0      0       0       0       2



________________________________
From: Marco <[email protected]>
Sent: Wednesday, September 6, 2023 5:00 AM
To: [email protected] <[email protected]>
Subject: Re: IPv6 Issues with thunderbolt-net driver?

Am 05.09.2023 um 19:08:28 Uhr schrieb Alex Balcanquall:

>   1.  did the ssh packet hit the wire or not or got discarded by the
> driver after tcpdumpsaw 2.  if the packet did hit the wire did pve2
> see it and discard the packet before it got far enough up the stack
> to be seen by tcpdump...

ip -s -s link show <ifname>
on both machines.


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<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 11pt; color: rgb(0, 0, 0);" class=3D"elementToProof ContentPasted0">
root@pve1:~# ip -s -s link show en06
<div class=3D"ContentPasted0"><br>
</div>
<div class=3D"ContentPasted0"><br>
</div>
<div class=3D"ContentPasted0">PVE1 (sender)</div>
<div class=3D"ContentPasted0"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1">root@pve1:~# ip -s -s link sho=
w en06
<div class=3D"ContentPasted1">7: en06: &lt;BROADCAST,MULTICAST,UP,LOWER_UP&=
gt; mtu 65520 qdisc pfifo_fast state UP mode DEFAULT group default qlen 100=
0</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; link/ether 02:1a:44:65:db:e0 br=
d ff:ff:ff:ff:ff:ff</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; RX: &nbsp; bytes &nbsp;packets =
errors dropped &nbsp;missed &nbsp; mcast &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; 19047333241 20301503 &nbsp; &nb=
sp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nb=
sp; 0
</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; RX errors: &nbsp; &nbsp;length =
&nbsp; &nbsp;crc &nbsp; frame &nbsp; &nbsp;fifo overrun</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp;=
 &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0
</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; TX: &nbsp; bytes &nbsp;packets =
errors dropped carrier collsns &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; 15558035141 18392655 &nbsp; &nb=
sp; &nbsp;7 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nb=
sp; 0
</div>
<div class=3D"ContentPasted1">&nbsp; &nbsp; TX errors: &nbsp; aborted &nbsp=
; fifo &nbsp;window heartbt transns</div>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp;=
 0 &nbsp; &nbsp; &nbsp; 2 <br>
</div>
<div class=3D"ContentPasted0 ContentPasted1"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1">PVE2 (destination)</div>
<div class=3D"ContentPasted0 ContentPasted1 ContentPasted2">root@pve2:~# ip=
 -s -s link show en05
<div class=3D"ContentPasted2">74: en05: &lt;BROADCAST,MULTICAST,UP,LOWER_UP=
&gt; mtu 65520 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10=
00</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; link/ether 02:8e:95:f1:62:1a br=
d ff:ff:ff:ff:ff:ff</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; RX: &nbsp; bytes &nbsp;packets =
errors dropped &nbsp;missed &nbsp; mcast &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; 15561305384 19172991 &nbsp; &nb=
sp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nb=
sp; 0
</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; RX errors: &nbsp; &nbsp;length =
&nbsp; &nbsp;crc &nbsp; frame &nbsp; &nbsp;fifo overrun</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp;=
 &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0
</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; TX: &nbsp; bytes &nbsp;packets =
errors dropped carrier collsns &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; 19050263184 18347026 &nbsp; &nb=
sp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nb=
sp; 0
</div>
<div class=3D"ContentPasted2">&nbsp; &nbsp; TX errors: &nbsp; aborted &nbsp=
; fifo &nbsp;window heartbt transns</div>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp;=
 0 &nbsp; &nbsp; &nbsp; 2 <br>
</div>
<div class=3D"ContentPasted0 ContentPasted1 ContentPasted2"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1 ContentPasted2">So straight aft=
er the PVE1 test i did this.... does this mean they were dropped before the=
 wire?</div>
<div class=3D"ContentPasted0 ContentPasted1 ContentPasted2"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1 ContentPasted2 ContentPasted3">=
root@pve1:~# ssh root@2600:a801:830:81::82
<div class=3D"ContentPasted3">^C</div>
<div class=3D"ContentPasted3">root@pve1:~# ip -s -s link show en06</div>
<div class=3D"ContentPasted3">7: en06: &lt;BROADCAST,MULTICAST,UP,LOWER_UP&=
gt; mtu 65520 qdisc pfifo_fast state UP mode DEFAULT group default qlen 100=
0</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; link/ether 02:1a:44:65:db:e0 br=
d ff:ff:ff:ff:ff:ff</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; RX: &nbsp; bytes &nbsp;packets =
errors dropped &nbsp;missed &nbsp; mcast &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; 19053852086 20311446 &nbsp; &nb=
sp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nb=
sp; 0
</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; RX errors: &nbsp; &nbsp;length =
&nbsp; &nbsp;crc &nbsp; frame &nbsp; &nbsp;fifo overrun</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp;=
 &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0
</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; TX: &nbsp; bytes &nbsp;packets =
errors dropped carrier collsns &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; 15565251706 18402383 &nbsp; &nb=
sp; 11 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp; 0
</div>
<div class=3D"ContentPasted3">&nbsp; &nbsp; TX errors: &nbsp; aborted &nbsp=
; fifo &nbsp;window heartbt transns</div>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp;0 &nbsp; &nbsp; &nbsp;0 &nbsp; &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp;=
 0 &nbsp; &nbsp; &nbsp; 2 <br>
</div>
<div class=3D"ContentPasted0 ContentPasted1"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1"><br>
</div>
<div class=3D"ContentPasted0 ContentPasted1"><br>
</div>
</div>
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<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Marco &lt;mm@dorfdsl.=
de&gt;<br>
<b>Sent:</b> Wednesday, September 6, 2023 5:00 AM<br>
<b>To:</b> [email protected] &lt;[email protected]&gt=
;<br>
<b>Subject:</b> Re: IPv6 Issues with thunderbolt-net driver?</font>
<div>&nbsp;</div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt;=
">
<div class=3D"PlainText">Am 05.09.2023 um 19:08:28 Uhr schrieb Alex Balcanq=
uall:<br>
<br>
&gt;&nbsp;&nbsp; 1.&nbsp; did the ssh packet hit the wire or not or got dis=
carded by the<br>
&gt; driver after tcpdumpsaw 2.&nbsp; if the packet did hit the wire did pv=
e2<br>
&gt; see it and discard the packet before it got far enough up the stack<br=
>
&gt; to be seen by tcpdump...<br>
<br>
ip -s -s link show &lt;ifname&gt;<br>
on both machines.<br>
<br>
</div>
</span></font></div>
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