How to configure the firewall for VPN PPP connections?

[Gordon Messmer]

On 02/19/2015 02:57 PM, Paul Smith wrote:
> The issue may be related to the following:
>
> https://ask.fedoraproject.org/en/question/63759/pptp-connection-fails-after-last-update/?sort=oldest

That's odd.  GRE packets should be "RELATED" to the initial pptp 
connection.  Was there actually a change in firewalld?  I don't see 
one.  This sounds like a kernel bug.