Subj : My ipv6
To   : Wilfred van Velzen
From : Sean Rima
Date : Sat May 30 2026 10:25 am


Hello Wilfred!

28 May 26 16:12, you wrote to me:

 SR>> I am not sure what is going on. I have changed it back to port
 SR>> forwarding but that seemed to fail as well. I logged into a
 SR>> remote pc and telneted to 24554 and it always connects. There is
 SR>> currently no way to replace the modem due to the method used for
 SR>> connection

 WV> From about the time you wrote this, all outbound IPv6 connects are
 WV> still failing, but all outbound IPv4 connects area successful:

 WV> + 28 May 15:55:07 [25412] call to 2:263/1@fidonet
 WV>   28 May 15:55:07 [25412] trying bbs.rima-iot.eu
 WV> [2a06:5900:8194:100:acb:a059:6e85:1ded]... ? 28 May 15:57:15 [25412]
 WV> connection to 2:263/1@fidonet failed: Connection timed out 28 May
 WV> 15:57:15 [25412] trying bbs.rima-iot.eu [51.182.63.136]:24554... 28
 WV> May 15:57:15 [25412] connected
 WV> ...

 WV> Maybe your IPv6 changed?


 WV> The last 64 bits (0acb:a059:6e85:1ded) identify the specific
 WV> interface.

 WV>     Randomized/Privacy-Focused: Looking at the interface ID, it does
 WV> not follow the older EUI-64 format (which embeds a device's physical
 WV> MAC address into the IP using ff:fe). Instead, it is either statically
 WV> assigned by the server administrator or generated randomly using
 WV> privacy extensions (like RFC 4941 or RFC 7217). This is standard
 WV> practice for modern operating systems and security-focused networks to
 WV> prevent device tracking.

The fidonet machine is one of the few Pi I have that uses an ethernet 
connection and I just checked and it is the same. I will get onto the help on 
Tuesday

Sean


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