FireWall block pptp traffic

[Kotische]

Enabling firewall creates a lot of iptables rules. As a result, the default settings block pptp traffic.
How to disable unnecessary rules that proxmox creates a default?

 

[Qian Chen]

I have the same problem. Even if no rule is added, and everything set to ACCEPT. Enabling firewall still blocks pptp and gre traffic.

 

[Joern Bredereck]

I have the same problem. Even if no rule is added, and everything set to ACCEPT. Enabling firewall still blocks pptp and gre traffic.

Is there NAT involved? If so then it's more likely that you are missing the necessary PPTP/GRE-NATing modules.

modprobe ip_nat_pptp
modprobe ip_conntrack_pptp
modprobe ip_gre

 

[Qian Chen]

It works!!! Thank you!!!

 

[Bart Brouwer]

After a restart, the mods are gone again. How could i hold them?

 

[Jarek]

Add them to /etc/modules.

 

[Bart Brouwer]

hmm i tried with proxmox 4 last year, but i got an module error on startup.
i only have to fill in this 3 words?
modprobe ip_nat_pptp
modprobe ip_conntrack_pptp
modprobe ip_gre

i will try it again with proxmox 5 tnx!

 

[Jarek]

Without the 'modprobe' word.
The /etc/modules file is a list of modules to load at boot time.

 

[Bart Brouwer]

aaaah! i think thats my problem tnxxxx in advance!