Hello Paul,
On 09/06/2016 01:53 PM, Paul Smith wrote:
On Tue, Sep 6, 2016 at 12:03 PM, Paul Smith <phhs80@xxxxxxxxx> wrote:
I was able to connect to a vpn server (PPTP) with no difficulties. But
now, I get always the following message:
"VPN connection failed because service stopped".
From a MS Windows machine, I can connect to the referred vpn server.
Could someone please help me?
The following log may help you:
The problem was related to the firewall, although I had not changed
anything in the firewall.
The following (done as root) fixed the problem:
firewall-cmd --direct --add-rule ipv4 filter INPUT 0 -p gre -j ACCEPT
firewall-cmd --direct --add-rule ipv6 filter INPUT 0 -p gre -j ACCEPT
firewall-cmd --reload
You can simply duplicate the lines with the additional --permanent option, then
the change will be placed in the permanent environment.
With a firewalld version >= 0.4.1 you can also enable the gre protocol in a zone:
firewall-cmd --add-protocol=gre [--permanent] [--zone=<zone>]
This will then be added for IPv4 and IPv6. Without the --zone option, the
default zone will be used.
Paul
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Regards,
Thomas
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