How to Install OpenVPN and PPTP on RHEL v7 | Asterisk

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 Linux VPN Masquerade - ImpSec Depending on the PPTP server in use you may be forced to use a VPN router configuration if more than one masqueraded system wants to connect to a given PPTP server. The PPTP protocol specifies only one control connection from a given client system, and the masquerade gateway is the client as far as the server is concerned. Setting Up PPTP Server in Linux ( Ubuntu/CentOS PPTP Installation. On Ubuntu: $ apt-get install pptpd. On CentOS: $ yum -y install pptpd. The … Static PPTP VPN Client - DD-WRT Wiki

Setup PPTP VPN Server on CentOS 6 -

Nov 23, 2014 OpenWrt Forum Archive Sep 13, 2006

IPtables Rules for PPTP Server Solutions | Experts Exchange

systemctl mask firewalld systemctl stop firewalld yum install iptables-services systemctl enable iptables systemctl start iptables. Configure IPTables NAT. This is required for OpenVPN and PPTP and not using an OpenVZ virtual server. iptables -t nat -A POSTROUTING -o eth0 -j … IPtables Rules for PPTP Server Solutions | Experts Exchange I have a PPTP Server with poptop 1.3 on Fedora. I can't connect to Server because i don't know to configure IPtables. Network Interfaces: venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 -00 inet addr: P-t-P: Bcast: Mask:255.255.255. 255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:431 errors:0 dropped:0 … 1390961 – firewalld does not allow connections to VPN PPTP firewalld 0.4.4 is providing support for net.netfilter.nf_conntrack_helper=0 within firewalld. But if you connect to a VPN pptp server with NetworkManager, then NM is taking care about the connection and loads the pptp conntrack helper module. firewalld is not directly involved. How to configure iptables for openvpn iptables -A FORWARD -i tun+ -j ACCEPT iptables -A FORWARD -i tun+ -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT iptables -A FORWARD -i eth0 -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT. NAT the VPN client traffic to the Internet. change the ip address mask according to your info of tun0 result while running "ifconfig" command.