Date: Wed, 23 Jul 2025 19:36:46 -0400 From: Karl Denninger <karl@denninger.net> To: freebsd-net@freebsd.org Subject: Re: rtadvd appears to ignore options set in /etc/rtadvd.conf Message-ID: <bfb35bcc-f69b-40f9-adde-d6cb70d38246@denninger.net> In-Reply-To: <nr9p9rsq-8o1p-3159-onqo-349p5q667864@yvfgf.mnoonqbm.arg> References: <2ceaf7ed-3a04-47f3-a1f1-9f8a40cab9ef@denninger.net> <nr9p9rsq-8o1p-3159-onqo-349p5q667864@yvfgf.mnoonqbm.arg>
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<div class=3D"moz-cite-prefix">On 7/23/2025 16:47, Bjoern A. Zeeb
wrote:<br>
</div>
<blockquote type=3D"cite"
cite=3D"mid:nr9p9rsq-8o1p-3159-onqo-349p5q667864@yvfgf.mnoonqbm.arg=
">On
Wed, 23 Jul 2025, Karl Denninger wrote:
<br>
<br>
Hi,
<br>
<br>
(sorry I deleted the message as the tex/only part was barely
parsable).
<br>
<br>
Can you, for testing, try adding an
<br>
=C2=A0=C2=A0=C2=A0=C2=A0addr=3D"xxx:xxx:xxx:xxxx::":\
<br>
to one of your entries and see if the behaviour changes?
<br>
<br>
/bz=C2=A0<br>
<br>
</blockquote>
root@IpGw:/etc # more /etc/rtadvd.conf<br>
# Set the preferred lifetime to 10 minutes on advertised prefixes.<br=
>
# All other parameters are default.<br>
#<br>
default:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :vltime#86400:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :pltime#3600:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :prefixlen#64:addr=3D"xxx:xxx:xxx:xxxx::"=
:<br>
ix1:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :vltime#86400:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :pltime#3600:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :prefixlen#64:addr=3D"xxx:xxx:xxx:xxxx::"=
:<br>
ix1.4:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :vltime#86400:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :pltime#3600:\<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 :prefixlen#64:<br>
<p>No change -- the announcement is going out on ix1 from the
gateway.</p>
<p>On machine receiving the advertisements:</p>
<p>19:35:49.085297 IP6 (hlim 255, next-header ICMPv6 (58) payload
length: 56) fe80::2e0:b4ff:fe68:f895 > ff02::1: [icmp6 sum ok]
ICMP6, router advertisement, length 56<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 hop limit 64, Flags [none], pref medium=
, router lifetime
1800s, reachable time 0ms, retrans timer 0ms<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 source link-address option (1), =
length 8 (1):
00:e0:b4:68:f8:95<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 prefix info option (3), length 3=
2 (4):
2606:83c0:8000:1b00::/64, Flags [onlink, auto], <b><u>valid time
2592000s, pref. time 604800s</u></b><br>
<br>
</p>
<br>
<div class=3D"moz-signature">-- <br>
Karl Denninger<br>
<a href=3D"mailto:karl@denninger.net" class=3D"moz-txt-link-freetex=
t">karl@denninger.net</a><br>
<i>The Market Ticker</i><br>
<font size=3D"-2"><i>[S/MIME encrypted email preferred]</i></font><=
/div>
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