Re: rtadvd appears to ignore options set in /etc/rtadvd.conf
Date: Thu, 24 Jul 2025 11:47:14 UTC
Nope -- no change: 07:44:23.810602 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 Note that I cannot set an actual valid "address" in the config file since I have no clue what it is in advance (it comes off the delegation from the ISP of course) This looks like a bug (starting rtadvd with verbose debugging on in the foreground doesn't log any complaints -- it looks like it just ignores the parameters.) On 7/23/2025 23:26, John Hay wrote: > Hi Karl, > > What if you use a = instead of the #? For example :vltime=86400: > > I set rdnss and dnssl using = and that works. > > John > > > On Thu, 24 Jul 2025 at 01:38, Karl Denninger <karl@denninger.net> wrote: > > 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 > /The Market Ticker/ > /[S/MIME encrypted email preferred]/ > -- Karl Denninger karl@denninger.net /The Market Ticker/ /[S/MIME encrypted email preferred]/