Iptables forward with pptp and openvpn. 0. Route wlan0 to openVPN tunnel and rest to eth0. 0. iptables redirect traffic from VPN interface to next interface. 5. OpenVPN and routing problem on OpenWRT. 0. Iptables with libnetfilter NATing problem. 0. How to forward traffic for specific IP over an tun0 interface.

Oct 22, 2011 Configure iptables for PPTPD on CentOS 6 – Shawn's Blog # iptables -A INPUT -p tcp –dport 22 -j ACCEPT # Allow PPTP Control connection iptables -A INPUT -p tcp –dport 1723 -j ACCEPT # Allow GRE iptables -A INPUT -p gre -j ACCEPT # NAT for PPTP clients connectivity iptables -t nat -A POSTROUTING -j SNAT –to-source iptables -t nat -A POSTROUTING -s -o eth0 -j MASQUERADE How To Setup Your Own VPN With PPTP | DigitalOcean Mar 20, 2013

(ip_conntrack_pptp+ip_nat_pptp or nf_conntrack_pptp+nf_nat_pptp on some recent 2.6 kernels) are not required for a masqueraded server. You may try the following rather simple ruleset (assuming eth0 is the

Troubleshooting 'GRE: Protocol not available' errors Make sure your PPTP server can recieve a connection on port 1723 and that protocol 47 is being allowed or forwarded. If your PPTP server has iptables running. iptables -A INPUT -p tcp --dport 1723 -j ACCEPT iptables -A INPUT -p 47 -j ACCEPT or if your PPTP server is behind a machine running iptables

Circumventing Path MTU Discovery issues with MSS Clamping

Mailing List Archive: PPTP >A have a Gateway Gnu/Linux, Debian 3.0 rc1 with kernel 2.4.22, iptables >1.2.8-8 and freeswan 2.02 in São Paulo and i have another Linux in >Rio-de-Janeiro with Red-Hat 6.2, ipchains and the path-pptp. Clients in >São Paulo have to conect in Rio-de-Janeiro throught PPTP and the problem >its that the Server in Rio accepts only one connection. Linux IPTables: Incoming and Outgoing Rule Examples (SSH