[strongSwan] VTI with 0.0.0.0/0 <---> 0.0.0.0/0 selector support

Shashidhar Patil shashidhar.patil at gmail.com
Thu Oct 8 11:42:51 CEST 2015


Hi Noel,
   Thank you for the help.

    Make sure you disabled XFRM on the VTI interface.

I suppose you meant disable_policy. disabling xfrm disable enryption
altogether.
 vti.disable_policy=1 disables policy check after decryption and traffic is
fine.

My statement  "I did not understand the intent of policy check after
decryption."
was vague. I actually meant why policy check when we know the packet is
meant for VTI and VTI is most of the times used with any to any selectors.
I intend to say that for vti policy check should be disabled by default and
if
required it can be turned on anyway. This can be easily achieved by setting
disable_policy during vti creation either in kernel or user space(sysctl).

Thanks for your help.

-Shashidhar
On Wed, Oct 7, 2015 at 3:42 PM, Noel Kuntze <noel at familie-kuntze.de> wrote:

>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Make sure you disabled XFRM on the VTI interface.
>
>
> > I did not understand the intent of policy check after decryption.
> To check if the encapsulated traffic is actually allowed to be tunneled.
> - --
>
> Mit freundlichen Grüßen/Kind Regards,
> Noel Kuntze
>
> GPG Key ID: 0x63EC6658
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