I have also try to use this VPN connection from my Fedora Workstation
and all work fine, seem a problem of router Vodafone Station.
This is a ping from server to V.S. when the V.S. is connected:
[root@s-virt tmp]# ping 192.168.11.100
PING 192.168.11.100 (192.168.11.100) 56(84) bytes of data.
64 bytes from 192.168.11.100: icmp_seq=1 ttl=64 time=63.3 ms
mar 26 15:33:06 s-virt.ansaldi.loc kernel: mppe_decompress[0]: FLUSHED
bit not set in stateless mode!
64 bytes from 192.168.11.100: icmp_seq=3 ttl=64 time=76.4 ms
mar 26 15:33:08 s-virt.ansaldi.loc kernel: mppe_decompress[0]: FLUSHED
bit not set in stateless mode!
64 bytes from 192.168.11.100: icmp_seq=5 ttl=64 time=63.8 ms
mar 26 15:33:10 s-virt.ansaldi.loc kernel: mppe_decompress[0]: FLUSHED
bit not set in stateless mode!
64 bytes from 192.168.11.100: icmp_seq=7 ttl=64 time=63.9 ms
^C
--- 192.168.11.100 ping statistics ---
7 packets transmitted, 4 received, 42% packet loss, time 6002ms
rtt min/avg/max/mdev = 63.364/66.895/76.414/5.508 ms
Many thanks
Il giorno lun, 26/03/2018 alle 13.03 +0200, Dario Lesca ha scritto:
> I try to setup a PPTP VPN server on Centos 7 and from client a router
> Vodafone Station (Firmware 5.4.8.1.316.1.21)
>
> On c7 I have install this:
>
> [root@s-virt tmp]# rpm -q pptpd ppp
> pptpd-1.4.0-2.el7.x86_64
> ppp-2.4.5-33.el7.x86_64
>
>
> and setup all file and firewall like howto say.
> This now is my config:
>
> /etc/pptpd.conf:option /etc/ppp/options.pptpd
> /etc/pptpd.conf:logwtmp
> /etc/pptpd.conf:localip 192.168.11.1
> /etc/pptpd.conf:remoteip 192.168.11.100-109
> /etc/ppp/options.pptpd:name pptpd
> /etc/ppp/options.pptpd:refuse-pap
> /etc/ppp/options.pptpd:refuse-chap
> /etc/ppp/options.pptpd:refuse-mschap
> /etc/ppp/options.pptpd:require-mschap-v2
> /etc/ppp/options.pptpd:require-mppe-128
> /etc/ppp/options.pptpd:lock
> /etc/ppp/options.pptpd:nobsdcomp
> /etc/ppp/options.pptpd:novj
> /etc/ppp/options.pptpd:novjccomp
> /etc/ppp/options.pptpd:nologfd
> /etc/ppp/chap-secrets:myuser pptpd mypass *
>
> The connection from V.S. router to my c7 server work:
>
> mar 26 12:50:28 s-virt.ansaldi.loc pptpd[26782]: CTRL: Client x.x.x.x
> control connection started
> mar 26 12:50:28 s-virt.ansaldi.loc pptpd[26782]: CTRL: Starting call
> (launching pppd, opening GRE)
> mar 26 12:50:28 s-virt.ansaldi.loc pppd[26783]: Plugin
> /usr/lib64/pptpd/pptpd-logwtmp.so loaded.
> mar 26 12:50:28 s-virt.ansaldi.loc pppd[26783]: pppd 2.4.5 started by
> root, uid 0
> mar 26 12:50:28 s-virt.ansaldi.loc pppd[26783]: Using interface ppp0
> mar 26 12:50:28 s-virt.ansaldi.loc pppd[26783]: Connect: ppp0 <-->
> /dev/pts/19
> mar 26 12:50:28 s-virt.ansaldi.loc NetworkManager[1026]:
> <info> [1522061428.6946] manager: (ppp0): new Generic device (
> /org/freedesktop/NetworkManager/Devices/40)
> mar 26 12:50:28 s-virt.ansaldi.loc pppd[26783]: peer from calling
> number x.x.x.x authorized
> mar 26 12:50:31 s-virt.ansaldi.loc pppd[26783]: MPPE 128-bit
> stateless compression enabled
> mar 26 12:50:34 s-virt.ansaldi.loc pppd[26783]: local IP address
> 192.168.11.1
> mar 26 12:50:34 s-virt.ansaldi.loc pppd[26783]: remote IP address
> 192.168.11.100
>
> But when I try to connect from a client (through the V. S. router) to
> my server via VPN, or ping it, on 4 ping only two work, and into log
> of server I see this error when the ping fail.
>
> > mar 26 12:00:50 s-virt.ansaldi.loc kernel: mppe_decompress[0]:
> FLUSHED bit not set in stateless mode!
>
> Someone have some suggest to resolve this problem ?
>
> Many thanks
>
--
Dario Lesca
(inviato dal mio Linux Fedora 27 Workstation)
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