[Swan] IPv6 Question

Mirsad Goran Todorovac mirsad.todorovac at alu.unizg.hr
Fri Jul 15 12:17:33 EEST 2022

On 13.7.2022. 21:58, Paul Wouters wrote:

> On Wed, 13 Jul 2022, Mirsad Goran Todorovac wrote:
>> But I can't seem to find how to prevent Win 10 VPN client from trying 
>> to establish a NAT connection. I will try more Googling.
> The IKEv2 spec allows to use port 4500 even if there is no NAT, and it
> states one should always accept packets on the port. So libreswan should
> be doing that. If it is not listening to the IPv6 port 4500 per default,
> that's a bug.

If not listening on IPv6 port 4500 per default is a bug, then I think we 
have one.

Should I file a proper bug report to the Libreswan developer team or 
what is the recommended step?



Mirsad Todorovac
System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb
Republic of Croatia, the European Union
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu

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