Re: rtadvd appears to ignore options set in /etc/rtadvd.conf

On 7/23/2025 16:47, Bjoern A. Zeeb wrote:
> On Wed, 23 Jul 2025, Karl Denninger wrote:
>
> Hi,
>
> (sorry I deleted the message as the tex/only part was barely parsable).
>
> Can you, for testing, try adding an
>     addr="xxx:xxx:xxx:xxxx::":\
> to one of your entries and see if the behaviour changes?
>
> /bz
>
root@IpGw:/etc # more /etc/rtadvd.conf
# Set the preferred lifetime to 10 minutes on advertised prefixes.
# All other parameters are default.
#
default:\
         :vltime#86400:\
         :pltime#3600:\
         :prefixlen#64:addr="xxx:xxx:xxx:xxxx::":
ix1:\
         :vltime#86400:\
         :pltime#3600:\
         :prefixlen#64:addr="xxx:xxx:xxx:xxxx::":
ix1.4:\
         :vltime#86400:\
         :pltime#3600:\
         :prefixlen#64:

No change -- the announcement is going out on ix1 from the gateway.

On machine receiving the advertisements:

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
         hop limit 64, Flags [none], pref medium, router lifetime 1800s, 
reachable time 0ms, retrans timer 0ms
           source link-address option (1), length 8 (1): 00:e0:b4:68:f8:95
           prefix info option (3), length 32 (4): 
2606:83c0:8000:1b00::/64, Flags [onlink, auto], *_valid time 2592000s, 
pref. time 604800s_*


-- 
Karl Denninger
karl@denninger.net
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