[CentOS] Howto create a VPN connection on desktop (CentOS 6)

Thu Jul 14 07:11:14 UTC 2011
Ljubomir Ljubojevic <office at plnet.rs>

Mark Weaver wrote:
> 
> It really has been a while for me doing this stuff so I'm going to have 
> to eat a little crow here and ask: what is all of the following trying 
> to tell me?
> 

<snip>

> 

My guess of the culprit would be:
Non-zero Async Control Character Maps are not supported!

Also thing to investigate:
Warning: can't open options file /root/.ppprc: Permission denied

Also try this from Ubuntu Forums:

Re: Can't connect to PPTP VPN
What PPTP settings are you using? I've had this problem for a long time 
as well, although I did manage to find a combination that worked. Give 
it a try:

Tick
- Refuse EAP
- Allow Deflate compression
- Allow BSD compression
- Require MPPE encryption
- Require 128 bit MPPE encryption
- Enable stateful MPPE
- Use peer DNS

Do not tick
- Authenticate peer
- Refuse CHAP
- Refuse MS CHAP
- Require MPPC encryption

Ljubomir