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Re: pptpd problem



Sergey Smirnov wrote:
Hello,

I'm trying to set up VPN server on FC5..
Using software:
kernel-smp-2.6.17-1.2174_FC5
ppp-2.4.3-6.2.1
pptpd-1.3.3-1.fc5

config files:
__
/etc/pptpd.conf

option /etc/ppp/options.pptpd
debug
localip 10.25.100.10
remoteip 172.16.10.1-100
__
/etc/ppp/options.pptpd

name pptpd
lock
auth
require-chap
nodefaultroute
nodeflate
nobsdcomp
nomppe
__
/etc/ppp/chap-secrets
test    *       test    *
---
Loaded modules:
...
ip_gre
ip_conntrack_pptp
ppp_async
ppp_generic
...

On other FC box, I'm trying to up vpn link (only testing):
#pptp 10.25.100.10 name test

In /var/log/message on VPN server:
...
pptpd[4405]: CTRL: Client 10.25.100.100 control connection started
pptpd[4405]: CTRL: Starting call (launching pppd, opening GRE)
pptpd[4405]: GRE: Bad checksum from pppd.
pptpd[4405]: GRE: read(fd=9,buffer=8059660,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
pptpd[4405]: CTRL: PTY read or GRE write failed (pty,gre)=(9,10)
pptpd[4405]: CTRL: Client 10.25.100.100 control connection finished
...

Any ideas?

Any SELinux denials on either client or server?

Is there some good reason why you're setting up an VPN using PPTP rather than the more secure openvpn (as recommended by the PPTP developers)?

Paul.


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