My PPTP VPN works fine on Windows and Android. On Android and Windows, no specific configuration is needed only I need to check PPP encryption(MPPE).
But on Ubuntu 20.04 it disconnects randomly after a period of time.
I am currently running ubuntu 18.04 box and I have configured pptpd to run a PPTP VPN server.
I have followed this guide: https://help.ubuntu.com/community/PPTPServer
I’ve tried configuring the server using: ROUTING CHECKLIST – PROXYARP And ROUTING CHECKLIST – FORWARDING Which was described in the notes here: http://manpages.ubuntu.com/manpages/bionic/man5/pptpd.conf.5.html
In both configurations, I can ping other machines on the network using IP but not hostname when connected to the ubuntu PPTP server.
If I am on a local machine, I can ping clients using both hostnames and IPs. It just on the client machine (window 10) when connected to ubuntu PPTP server I can’t ping using hostname. My remote network is on 192.168.1.1-200 and the VPN client is on 192.168.0.100
After hours of googling, I have hit a dead-end of knowledge!
I have one vpn server(server A). Server A is connected to another vpn server(server B). Server A has some clients.
Is it possible to route only traffic from vpn clients of server A to the connection of server B, so the machine A will use default internet connection?
Each of clients is connected to some ppp+ interface(ppp1-10) and has the ip address 11.0.0.1-10. 11.0.1.1 - ip of pptpd server. Ppp0 is the interface of connection to server B.
ifconfig output:
eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether e8:03:9a:93:07:53 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 13486316 bytes 3242965197 (3.0 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13486316 bytes 3242965197 (3.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1400
inet 192.168.1.50 netmask 255.255.255.255 destination 192.168.1.1
ppp txqueuelen 3 (Point-to-Point Protocol)
RX packets 12 bytes 949 (949.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 12 bytes 1411 (1.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ppp1: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1396
inet 11.0.1.1 netmask 255.255.255.255 destination 11.0.0.1
ppp txqueuelen 3 (Point-to-Point Protocol)
RX packets 7 bytes 88 (88.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7 bytes 82 (82.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.4 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::9244:b58:9664:49b3 prefixlen 64 scopeid 0x20<link>
ether b8:03:05:4f:8a:44 txqueuelen 1000 (Ethernet)
RX packets 3950317 bytes 2674081227 (2.4 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 9771716 bytes 2046374004 (1.9 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
route -n output:
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 50 0 0 ppp0
0.0.0.0 192.168.1.1 0.0.0.0 UG 600 0 0 wlan0
11.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp1
"ip of server B" 192.168.1.1 255.255.255.255 UGH 0 0 0 wlan0
"ip of server B" 192.168.1.1 255.255.255.255 UGH 600 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0
192.168.1.1 0.0.0.0 255.255.255.255 UH 50 0 0 ppp0
192.168.1.1 0.0.0.0 255.255.255.255 UH 600 0 0 wlan0
I am trying to connect to a PPTP VPN server. The same config works fine in Windows but fails in Ubuntu 12.10. It must be some configuration issue.
sudo pptpsetup --create MYVPN --server xxx.xxx.xxx.xxx --username username --password password
Everything is setup correctly. But then when I try to actually run the VPN I get this:
$ sudo pppd call MYVPN updetach
Using interface ppp1
Connect: ppp1 <--> /dev/pts/2
LCP: timeout sending Config-Requests
Connection terminated.
Modem hangup
When I do this for more details:
tail -n 30 /var/log/syslog | grep -i ppp
Mar 18 06:33:08 tp pppd[5082]: pppd 2.4.5 started by root, uid 0
Mar 18 06:33:08 tp pppd[5082]: Using interface ppp1
Mar 18 06:33:08 tp pppd[5082]: Connect: ppp1 <--> /dev/pts/2
Mar 18 06:33:08 tp NetworkManager[988]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp1, iface: ppp1)
Mar 18 06:33:08 tp NetworkManager[988]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp1, iface: ppp1): no ifupdown configuration found.
Mar 18 06:33:08 tp NetworkManager[988]: <warn> /sys/devices/virtual/net/ppp1: couldn't determine device driver; ignoring...
Mar 18 06:34:18 tp pppd[5082]: LCP: timeout sending Config-Requests
Mar 18 06:34:18 tp pppd[5082]: Connection terminated.
Mar 18 06:34:18 tp NetworkManager[988]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp1, iface: ppp1)
Mar 18 06:34:18 tp pppd[5082]: Modem hangup
Mar 18 06:34:18 tp pptp[5084]: anon warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Mar 18 06:34:18 tp pppd[5082]: Exit.
Why is it not connecting? It works fine from Windows, so it must be something with Ubuntu 12.10 settings...
EDIT:
sudo pppd call MYVPN debug dump logfd 2 updetach
Is there any information about how to utilize this information to see what might have gone wrong?
pppd options in effect:
debug # (from command line)
updetach # (from command line)
logfd 2 # (from command line)
dump # (from command line)
noauth # (from /etc/ppp/peers/MYVPN)
name username # (from /etc/ppp/peers/MYVPN)
remotename MYVPN # (from /etc/ppp/peers/MYVPN)
# (from /etc/ppp/peers/MYVPN)
pty pptp xxx.xxx.xxx.xxx --nolaunchpppd # (from /etc/ppp/peers/MYVPN)
crtscts # (from /etc/ppp/options)
# (from /etc/ppp/options)
asyncmap 0 # (from /etc/ppp/options)
lcp-echo-failure 4 # (from /etc/ppp/options)
lcp-echo-interval 30 # (from /etc/ppp/options)
hide-password # (from /etc/ppp/options)
ipparam MYVPN # (from /etc/ppp/peers/MYVPN)
nobsdcomp # (from /etc/ppp/peers/MYVPN)
nodeflate # (from /etc/ppp/peers/MYVPN)
noipx # (from /etc/ppp/options)
using channel 27
Using interface ppp1
Connect: ppp1 <--> /dev/pts/2
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x0 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <callback CBCP> <mrru 1614> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]> < 17 04 01 00>]
sent [LCP ConfRej id=0x0 <callback CBCP> <mrru 1614> < 17 04 01 00>]
rcvd [LCP ConfReq id=0x1 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <callback CBCP> <mrru 1614> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]> < 17 04 01 00>]
sent [LCP ConfRej id=0x1 <callback CBCP> <mrru 1614> < 17 04 01 00>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x4 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <callback CBCP> <mrru 1614> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]> < 17 04 01 00>]
sent [LCP ConfRej id=0x4 <callback CBCP> <mrru 1614> < 17 04 01 00>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x6 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
sent [LCP ConfAck id=0x6 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x9 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
sent [LCP ConfAck id=0x9 <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x4e812c17> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0xc <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
sent [LCP ConfAck id=0xc <mru 1400> <auth chap MD5> <magic 0x27f847d4> <pcomp> <accomp> <endpoint [local:f8.7d.55.9e.60.00.42.53.ac.37.23.b6.c9.f4.6d.2f.00.00.00.00]>]
LCP: timeout sending Config-Requests
Connection terminated.
Modem hangup
Waiting for 1 child processes...
script pptp xxx.xxx.xx.xxx --nolaunchpppd, pid 6815
Script pptp xxx.xxx.xx.xxx --nolaunchpppd finished (pid 6815), status = 0x0
I have followed This guide and also the documentation for pptp vpn and my vpn connects. It even allows me to go on the web and search it. However, when I go to cmyip.com; it displays my personal ip (as if the vpn is not connected) I have other vpns (i used ddwrt pptp) and it displays the ip address of the vpn server im connected to? Let me know how i can fix this.
Same issue as here and it remains un answered.