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Re: IPPROTO_ESP and vpnc
> On 04/05/2011 03:29 PM, matthew sporleder wrote:
>> I'm trying to use vpnc and getting the following error:
>> socket(PF_INET, SOCK_RAW, IPPROTO_ESP): Protocol not supported
>> I wrote the following test program and get the same thing:
>> int main(int argc, char *argv)
>> int sock;
>> sock = socket(PF_INET, SOCK_RAW, IPPROTO_ESP);
>> if ( sock< 0 )
>> perror("sock problem");
>> Is this because my kernel has IPSEC commented out?
On Tue, Apr 5, 2011 at 9:45 PM, Jason Mitchell <jmitchel%bigjar.com@localhost>
> I don't know why you're getting the error, but you can't have ESP enabled in
> the kernel if you want to run vpnc. If ESP is enabled in the kernel then the
> kernel will grab the ESP packets and they won't ever get to vpnc running in
> userland. I just verified that.
Okay, that's helpful. I am also unable to create a IPPROTO_AH socket.
I'm not sure if I should blame xen or something else.
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