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Old 04-01-2008, 04:29 AM   #1
Deadw
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Registered: Mar 2008
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Problems with the VPN internet connection


I have a very strange problem with my VPN connection.
OK, I will say what I have.
I am connected to a local network and the IP and DNS are set by a DHCP server. So when installing Slack 12 I've chosen the DHCP server. The Internet is purchased by a VPN connection.
I don't like GUI because it doesn't work and I really hate it.
So, before Slack I got Ubuntu 7.10 and such combination of a script and the program pptp-linux worked perfectly.

So, what I have done. I downloaded the script http://cables.org.il/ik/cable.tar.gz and installed it. Also I installed pptp-linux in such a way:

tar zxvf pptp-linux-1.0.2.tar.gz
cd pptp-linux-1.0.2
make
cp pptp_callmgr /usr/local/bin
cp pptp /usr/local/bin

Then I typed cable-start (as root, surely) in console and it told me that the link ppp0 is UP! But none of the sites loaded and ping google.com haven't had any results.

I understand that none of the problems cannot be solved without necessary logs. So I provide the logs.



THAT'S BEFORE I MADE THE LINK UP

root@slack:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:01:6C0:9B:F1
inet addr:10.233.114.78 Bcast:10.233.127.255 Mask:255.255.192.0
inet6 addr: fe80::201:6cff:fed0:9bf1/64 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:837 errors:2 dropped:0 overruns:0 frame:0
TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:93751 (91.5 KiB) TX bytes:1708 (1.6 KiB)
Interrupt:16

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)




root@slack:~# ip r
10.233.64.0/18 dev eth0 scope link
127.0.0.0/8 dev lo scope link
default via 10.233.64.1 dev eth0


THAT'S WHEN I RUN THE SCRIPT CABLE

root@slack:~# cable-start
which: no pptp in (/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/lib/java/bin:/usr/lib/java/jre/bin:/usr/lib/qt/bin:/usr/share/texmf/bin)
Using interface ppp0
Connect: ppp0 <--> /dev/pts/2
root@slack:~# CHAP authentication succeeded
not replacing existing default route via 10.233.64.1
local IP address 172.30.176.142
remote IP address 193.138.247.180


AND THAT'S WHEN THE LINK IS UP

root@slack:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:01:6C0:9B:F1
inet addr:10.233.114.78 Bcast:10.233.127.255 Mask:255.255.192.0
inet6 addr: fe80::201:6cff:fed0:9bf1/64 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:25526 errors:4 dropped:0 overruns:0 frame:0
TX packets:67 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1664401 (1.5 MiB) TX bytes:5442 (5.3 KiB)
Interrupt:16

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

ppp0 Link encap:Point-to-Point Protocol
inet addr:172.30.176.142 P-t-P:193.138.247.180 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1460 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:40 (40.0 b) TX bytes:46 (46.0 b)


root@slack:~# ip r
193.138.247.180 dev ppp0 proto kernel scope link src 172.30.176.142
10.233.64.0/18 dev eth0 scope link
127.0.0.0/8 dev lo scope link
default via 10.233.64.1 dev eth0



So I can say that the IP and DNS values are absolutely correct, the same worked on Ubuntu and Arch Linux.

What I think: I think there may be some special Slackware 12-related problems. I've chosen the full installation and maybe some firewall installed ? Or I heard about the IPv6 that it can cause problems. OR maybe I haven't installed the pptp-linux program correctly, or it's too old. In Ubuntu I took the pptp-linux from the native disc and surely it was newer.

Please help me. I love Slack too much to give it up, and now I've got my xorg.conf right, I mounted my windows partitions, so without the Internet Linux (as well as any other OS) is useless...
 
Old 04-01-2008, 05:03 PM   #2
T3slider
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Registered: Jul 2007
Distribution: Slackware64-14.1
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When you ran `cable-start`, it couldn't find pptp. I would guess that you installed pptp incorrectly. If I were you (which I'm not) I would uninstall pptp (I guess you just copied two files or something, and I'm just guessing that the pptp file you copied to /usr/local/bin is not executable, meaning the permissions are wrong -- however, this is almost certainly not the correct way to install it) and install the version from slackbuilds.org: http://slackbuilds.org/repository/12.0/network/pptp/

There are instructions on that site about how to use the SlackBuild, but basically, download the pptp.tar.gz, extract it (using the command `tar -zxvf pptp.tar.gz`), and then download pptp-1.7.1.tar.gz and save it into the new "pptp" directory created when you extracted pptp.tar.gz. Then `cd` into the new directory containing pptp-1.7.1.tar.gz and type, as root, `./pptp.SlackBuild`. This will compile the program and leave a .tgz file in /tmp. Install this file (pptp-1.7.1-i486-1_SBo.tgz or something similar) using the following command, as root:
Code:
# installpkg pptp-1.7.1-i486-1_SBo.tgz
Then, hopefully, everything should work (if it doesn't work at first, restart your computer [or run `ldconfig` as root] and try again).

Good luck.
 
  


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