Connection crashes on a Debian Jessie/Sid client

frenke

Hi,

I have a Debian headless machine where I'm using OpenVPN to connect to an external VPN Host. I've had it working in the past but after 1 year abroad I now am unable to have a stable connection to the host. It crashes immediately after 5 seconds. The message I receive in the log is:

Sun Jul 14 11:05:36 2013 SENT CONTROL [xxxxxx.xxx]: 'PUSH_REQUEST' (status=1)
Sun Jul 14 11:05:36 2013 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1 bypass-dhcp,dhcp-option DNS 10.8.$
Sun Jul 14 11:05:36 2013 OPTIONS IMPORT: --ifconfig/up options modified
Sun Jul 14 11:05:36 2013 OPTIONS IMPORT: route options modified
Sun Jul 14 11:05:36 2013 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
Sun Jul 14 11:05:36 2013 ROUTE default_gateway=192.168.1.1
Sun Jul 14 11:05:36 2013 Note: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)
Sun Jul 14 11:05:36 2013 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Sun Jul 14 11:05:36 2013 /sbin/ifconfig x.x.x.x pointopoint x.x.x.x mtu 1500
SIOCSIFADDR: No such device
: ERROR while getting interface flags: No such device
SIOCSIFDSTADDR: No such device
: ERROR while getting interface flags: No such device
SIOCSIFMTU: No such device
Sun Jul 14 11:05:36 2013 Linux ifconfig failed: external program exited with error status: 1
Sun Jul 14 11:05:36 2013 Exiting

I'm able to run ifconfig "manually" so I don't think that's the issue. Please excuse me for being a newbie in this area.

Thank you for your help!

BR,
Frenke

maikcat

this says it all...

Sun Jul 14 11:05:36 2013 Note: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)

can you tell us more info about your setup?
is a physical server or a VM? (VZ maybe?)

Michael.

frenke

It's a virtual machine (on an ESX4.1 server). It's connected through the E1000 network adapter.
VMware tools is installed. 4 GB RAM and 2 CPU cores for the affected guest.
Regular Internet access works well within this guest.

I hope this information will suffice, otherwise please let me know and I'll post it ASAP.

Thanks Michael for taking your time!

maikcat

can you post the output of

modinfo tun

your system cant start tun/tap driver which is usually a kernel module...

Michael.

frenke

This is what I receive when i type "modinfo tun" as root:

filename: /lib/modules/2.6.32-5-686/kernel/drivers/net/tun.ko
alias: char-major-10-200
license: GPL
author: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
description: Universal TUN/TAP device driver
depends:
vermagic: 2.6.32-5-686 SMP mod_unload modversions 686

maikcat

ok then, please issue

modprobe tun

and try to start openvpn...

Michael.