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> pptp vpn in CentOS6
peterli
 Posted: Feb 15 2014, 03:01 AM
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I have set up multiple PPTP servers on Cent OS 5 and no problem, when I apply a similar procedure on a new Cent OS 6 default install box, I run into an issue where it connects fine ... but no internet traffic can be router. I assume it's a firewall issue or similar.

Basically here is my firewall and iptables setup:

net.ipv4.ip_forward = 1 (in sysctl)

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE


-Edit: I know it's a firewall . routing issue because I can ping the server fine when connected but not anything else. I ruled out DNS issues because I can't visit any website by IP.

If I have an RDP open with ANOTHER ONE of my servers, and I connect to the VPN, the RDP remains working fine, as do all existing connections, hence it appears the issue is some type of routing issue. I am confused because I use the same script as on my other Cent OS 6 with no problem.If you can help me,please reply me here,or if you have some reference material,you can send to my mail: dong@3anetwork.com
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