[Swan] Regression in IPv4 Connectivity from Windows 10 Client

Mirsad Goran Todorovac mirsad.todorovac at alu.unizg.hr
Mon Oct 31 21:06:52 EET 2022

Hi all,

I have noticed today (after having figured out how to connect IPv4-only 
from Windows 10) that I lose connectivity
with github libreswan, while I still had it with libreswan-4.9 from tarball.

I felt inspired and bisect gave this (at this commit I lost IPv4 Win 10 

git bisect good e75c5ce30d7b6e5311dd05a4d0512a5f61add78f
# bad: [4e1ceb32c64b8b077c41c538e39c5b6252b826b6] connections: pass 
struct connection_end into extract_end()
git bisect bad 4e1ceb32c64b8b077c41c538e39c5b6252b826b6
# bad: [bc47dcf87733484f5701b02212c3015a711ca1a9] ikev2: during IKE_AUTH 
parse IKEv2 CP requests
git bisect bad bc47dcf87733484f5701b02212c3015a711ca1a9
# good: [823443d6c796340128720a295c99f7eacae09d67] connections: (more) 
use ...->host->config rather than ...->config->host
git bisect good 823443d6c796340128720a295c99f7eacae09d67
# first bad commit: [bc47dcf87733484f5701b02212c3015a711ca1a9] ikev2: 
during IKE_AUTH parse IKEv2 CP requests
root at magrf:~/libreswan#

Windows specs:

VPN server is on Debian 11 Bullseye and stock kernel, on a rather old 
development can.

Hope this helps.

Kind regards,

Mirsad Todorovac
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu
System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia
tel. +385 (0)1 3711 451
mob. +385 91 57 88 355
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