SoftEther VPN User Forum

Dear Sir,

I have tried to install SoftEther VPN client on KVM platform. It was successfully installed, but unfortunately it did not work correctly.

1. When I tried to create Virtual Network Card, it was rejected due to the error code 31.
2. I then rebooted the system and retried, but failed again.

This problem does not happen on VirtualBox platform which runs SoftEther VPN client without any problem.

I am curious whether anyone has an experience of this problem.

Any comments and suggestions would be appreciated.
Regards

I am sorry -- I managed this problem by myself.

Although "vpncmd" works in a user mode, it must be run in a root mode (sudo).
Running vpncmd in a user mode caused this problem.

In addition to that, I also noticed that VPN client was installed in VM which used NAT configuration for virtual network card, but not a bridge. For some reason, this NAT definition is also problematic. a Guest OS was given an dhcp address by KVM (e.g. 10.0.2.10) where the default gateway was 10.0.2.2 and DNS server was 10.0.2.3. A guest OS can access to 10.0.2.2 and 10.0.2.3, but it could not access to outisde NAT.
This problem suddenly occured after running 2 weeks. However once happened, there is no way to recover -- even after rebooting KVM kernel.

Then I modified all virtual network cards of VM to bridge definition. The problem was eliminated and everything works fine.

Sorry to bother....

MASATERU KUWATA wrote:
> Dear Sir,
>
> I have tried to install SoftEther VPN client on KVM platform. It was
> successfully installed, but unfortunately it did not work correctly.
>
> 1. When I tried to create Virtual Network Card, it was rejected due to the
> error code 31.
> 2. I then rebooted the system and retried, but failed again.
>
> This problem does not happen on VirtualBox platform which runs SoftEther
> VPN client without any problem.
>
> I am curious whether anyone has an experience of this problem.
>
> Any comments and suggestions would be appreciated.
> Regards