[strongSwan] How many concurrent connections can charon handle reliably?

Dr. Rolf Jansen strongswan-rj at cyclaero.com
Mon Aug 22 19:47:31 CEST 2022


> Am 22.08.2022 um 14:32 schrieb Karl Denninger <karl at denninger.net>:
> 
> On 8/22/2022 13:31, Noel Kuntze wrote:
>> Hi Rolf, 
>> 
>> The data packets are processed by the kernel, so it's entirely a problem with either your kernel, the client, or related to the network. 
>> I propose you investigate in detail and create some logs and so on. 
>> The configs tell basically nothing relevant about what happens in your real life scenario. 
>> 
>> Kind regards 
>> Noel 
>> 
>> On 22.08.22 16:19, Dr. Rolf Jansen wrote: 
>>> I am not 100 % sure yet, however the impression is, not more than 1. 
>>> 
>>> FreeBSD 13.1-RELEASE 
>>> strongSwan 5.9.6 
>>> 
>>> As soon as there are more than 1 connections having different virtual peer addresses connected to the same local address, the system suffers connection losses. From charon's point of view, the connections are still open, and there is nothing different with the SA’s and the SP’s, only the packet flow just stops. 
>>> 
>>> 
> To the OP:  You aren't using the same credentials with two or more connections are you?
> 

No, all credentials are different.

Best regards

Rolf
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