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List: busybox
Subject: RE: IPv6 support with busybox
From: David Laight <David.Laight () ACULAB ! COM>
Date: 2022-04-19 12:34:01
Message-ID: bd096eae91904e7296855fa1f8068328 () AcuMS ! aculab ! com
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I'd check that the script that udhcpc6 runs to configure IPv6 is actually doing \
something sensible. Especially if you are also trying to use IPv4 as well.
You'll need a network that is running (IIRC) radv – otherwise you won't get a \
prefix length (aka netmask) or any routes. So if IPv6 ‘autoconf' (SLAAS) won't give \
you a valid IPv6 config then neither will dhcpc6.
David
From: busybox <busybox-bounces@busybox.net> On Behalf Of Vijay Khurdiya
Sent: 19 April 2022 13:05
To: busybox@busybox.net
Subject: Re: IPv6 support with busybox
Hi,
I installed busybox 1.29.3. I have tried to run tcpdump on my target to check on \
issue. I am running udhcpc6 by command - (udhcpc6 -b -p /var/run/udhcpc.usb0.pid -i \
usb0)
Below is dump o/p. Please give me hints. Am I missing something?
-------------------------------------------------------------------------------------------------------
17:15:27.615913 IP6 (hlim 1, next-header UDP (17) payload length: 62) \
fe80::f896:11ff:fe12:1314.dhcpv6-client > ff02::1:2.dhcpv6-server: [udp sum ok] dhcp6 \
solicit (xid=fdce7c (elapsed-time 65) (IA_NA IAID:986346022 T1:0 T2:0) \
(option-request DNS-server DNS-search-list) (Client-FQDN) (client-ID hwaddr type 1 \
fa9611121314))
On Tue, Apr 19, 2022 at 2:30 PM Vijay Khurdiya \
<vijay.khurdiya@gmail.com<mailto:vijay.khurdiya@gmail.com>> wrote: Hi,
I would like to know from which version IPv6 support is available under busybox. I \
learned there is separate dameon (udhcpc6) for IPv6.
I need to get an IPv6 address for Cellular network (M2M SIM).
Thanks
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
[Attachment #3 (text/html)]
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I'd check that the \
script that udhcpc6 runs to configure IPv6 is actually doing something \
sensible.<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="mso-fareast-language:EN-US">Especially if you are also trying to use IPv4 as \
well.<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span style="mso-fareast-language:EN-US">You'll need a network that \
is running (IIRC) radv – otherwise you won't get a prefix length (aka netmask) or \
any routes.<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="mso-fareast-language:EN-US">So if IPv6 ‘autoconf' (SLAAS) won't give you a \
valid IPv6 config then neither will dhcpc6.<o:p></o:p></span></p> <p \
class="MsoNormal"><span \
style="mso-fareast-language:EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span \
style="mso-fareast-language:EN-US"> \
David<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="mso-fareast-language:EN-US"><o:p> </o:p></span></p> <div \
style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> \
busybox <busybox-bounces@busybox.net> <b>On Behalf Of </b>Vijay Khurdiya<br>
<b>Sent:</b> 19 April 2022 13:05<br>
<b>To:</b> busybox@busybox.net<br>
<b>Subject:</b> Re: IPv6 support with busybox<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<div>
<p class="MsoNormal">I installed busybox 1.29.3. I have tried to run tcpdump on my \
target to check on issue. <o:p></o:p></p> </div>
<div>
<p class="MsoNormal">I am running udhcpc6 by command - (udhcpc6 -b -p \
/var/run/udhcpc.usb0.pid -i usb0)<o:p></o:p></p> </div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<p class="MsoNormal">Below is dump o/p. Please give me hints. Am I missing \
something?<o:p></o:p></p> </div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">-------------------------------------------------------------------------------------------------------<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">17:15:27.615913 IP6 (hlim 1, next-header UDP (17) payload \
length: 62) fe80::f896:11ff:fe12:1314.dhcpv6-client > ff02::1:2.dhcpv6-server: \
[udp sum ok] dhcp6 solicit (xid=fdce7c (elapsed-time 65) (IA_NA IAID:986346022 T1:0 \
T2:0) (option-request DNS-server DNS-search-list) (Client-FQDN) (client-ID hwaddr \
type 1 fa9611121314))<o:p></o:p></p> </div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Tue, Apr 19, 2022 at 2:30 PM Vijay Khurdiya <<a \
href="mailto:vijay.khurdiya@gmail.com">vijay.khurdiya@gmail.com</a>> \
wrote:<o:p></o:p></p> </div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm \
6.0pt;margin-left:4.8pt;margin-right:0cm"> <div>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<div>
<p class="MsoNormal">I would like to know from which version IPv6 support is \
available under busybox. I learned there is separate dameon (udhcpc6) \
for IPv6.<o:p></o:p></p> </div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I need to get an IPv6 address for Cellular network (M2M \
SIM).<o:p></o:p></p> </div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Thanks<o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
<br><br><div><span style="color:#484830;font-family:Tahoma;font-size:xx-small">Registered \
Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, \
UK<br>Registration No: 1397386 (Wales)</span></div> <div>
<p><span style="color:#008000;font-family:Arial"><span \
style="font-size:xx-small"><span style="font-family:Webdings">P </span><strong>Please \
consider the environment and don't print this e-mail unless you really need \
to</strong></span></span></p> </div></body></html>
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