Hi guys.
I'm trying to set up poptop VPN at my Centos 5.2 server (2.6.18-92.el5 #1 SMP, x86_64)
There is no pptpd RPM for x86_64 so I've compiled it from source.
ppp was installed from Centos Base repo (ppp-2.4.4-1.el5)
pptpd.conf:
Code:
option /etc/ppp/options
logwtmp
localip 192.168.1.200
remoteip 192.168.1.20-40
/etc/ppp/options:
Code:
name pptpd
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
proxyarp
lock
nobsdcomp
novj
novjccomp
nologfd
When I try to connect to the server I get disconnection.
From server logs:
Code:
Oct 30 14:16:41 stekov pptpd[2750]: MGR: Manager process started
Oct 30 14:16:41 stekov pptpd[2750]: MGR: Maximum of 21 connections available
Oct 30 14:16:51 stekov pptpd[2752]: CTRL: Client 93.178.76.72 control connection started
Oct 30 14:16:51 stekov pptpd[2752]: CTRL: Starting call (launching pppd, opening GRE)
Oct 30 14:16:51 stekov pppd[2753]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so is for pppd version 2.4.3, this is 2.4.4
Oct 30 14:16:51 stekov pptpd[2752]: GRE: read(fd=6,buffer=610880,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpect
ed termination of pppd, check option syntax and pppd logs
Oct 30 14:16:51 stekov pptpd[2752]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Oct 30 14:16:51 stekov pptpd[2752]: CTRL: Client 93.178.76.72 control connection finished
modules:
Code:
# lsmod | grep ppp
ppp_async 45249 0
crc_ccitt 35265 1 ppp_async
ppp_mppe 39881 0
ppp_generic 62689 2 ppp_async,ppp_mppe
slhc 39873 1 ppp_generic
# lsmod | grep gre
ip_gre 47329 0
# lsmod | grep nat
ip_nat_ftp 36545 0
ip_conntrack_ftp 41489 1 ip_nat_ftp
iptable_nat 40773 0
ip_nat_pptp 39365 0
ip_conntrack_pptp 45665 1 ip_nat_pptp
ip_nat 53100 3 ip_nat_ftp,iptable_nat,ip_nat_pptp
ip_conntrack 91237 7 ip_nat_ftp,ip_conntrack_ftp,iptable_nat,ip_nat_pptp,ip_conntrack_pptp,ip_nat,ip_conntrack_netbios_ns
nfnetlink 40457 2 ip_nat,ip_conntrack
ip_tables 55329 3 iptable_mangle,iptable_nat,iptable_filter
x_tables 50377 7 ipt_REJECT,ipt_tos,iptable_nat,ip_tables,ip6t_REJECT,xt_tcpudp,ip6_tables
Then I've removed ppp-2.4.4 and installed ppp-2.4.3 from source.
I'm able to start the connection now but it stucks at login/password checking and then drops the connection.
I see the following records at logs:
Code:
Oct 30 19:19:18 stekov pptpd[5128]: CTRL: Client 93.178.76.72 control connection started
Oct 30 19:19:18 stekov pptpd[5128]: CTRL: Starting call (launching pppd, opening GRE)
Oct 30 19:19:18 stekov pppd[5129]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Oct 30 19:19:18 stekov pppd[5129]: pppd 2.4.3 started by root, uid 0
Oct 30 19:19:18 stekov pppd[5129]: Using interface ppp0
Oct 30 19:19:18 stekov pppd[5129]: Connect: ppp0 <--> /dev/pts/2
Oct 30 19:19:48 stekov pppd[5129]: LCP: timeout sending Config-Requests
Oct 30 19:19:48 stekov pppd[5129]: Connection terminated.
Oct 30 19:19:48 stekov pppd[5129]: Using interface ppp0
Oct 30 19:19:48 stekov pppd[5129]: Connect: ppp0 <--> /dev/pts/2
Oct 30 19:19:48 stekov pppd[5129]: tcflush failed: Bad file descriptor
Oct 30 19:19:48 stekov pppd[5129]: tcsetattr: Invalid argument (line 1001)
Oct 30 19:19:48 stekov pppd[5129]: Exit.
Oct 30 19:19:48 stekov pptpd[5128]: GRE: read(fd=6,buffer=610880,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Oct 30 19:19:48 stekov pptpd[5128]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Oct 30 19:19:48 stekov pptpd[5128]: CTRL: Client 93.178.76.72 control connection finished
LCP and software data compression are disabled.
What's wrong with it?
