vpnc freezes computer with kernel 2.6.33-gentoo-r2, x86_64
I am trouble trying to get vpnc to work on my laptop.
Using the same computer via Ubuntu, it works fine.
I used to use an older kernel with the cisco vpn client, but had to go through the motions of turning off cpus in order for it to work. I gave that trick a try and it does not work.
I pretty much followed the instructions from:
Gentoo Linux Documentation -- Gentoo vpnc HOWTO
The machine completely locks up right after I enter my password...
I don't see anything relevant in the /var/log/messages file.
Is there another log file to look into specific to the vpnc?
Any one have any suggestions....
vpnc freezes computer HELP!! Linux VPN/ Netwrok Expert!
I am still trying to get VPNC to work on gentoo linux, kernel version 2.6.33, x86_64.
The problem occurs as soon as I enter the password and it tries to make its connection.
I am tailing the /var/log/messages and doing a dmesg command via a loop, and running tcpdump.
Here is what happens:
> # vpnc
Password for VPN username@XXXXX@ipaddress
VPNC started in background (pid: 2344) ...
System completely freezes
in dmesg output & logfile output I see:
[9309.539025] tun: Universal TUN/TAP device driver, 1.6
[9309.539027] tun: (C) 1999-2004 Max Krasnyansky <email@example.com>
tcpdump relatd output shows:
09:58:03.062988 IP computer.ipsec-nat-t > DestMachine.ipsec-nae-t: NONESP-encap: [|isakmp]
09:58:03.124601 IP DestMachine.ipsec-nae-t > computer.ipsec-nat-t: NONESP-encap: [|isakmp]
09:58:03.124746 IP computer.ipsec-nat-t > DestMachine.ipsec-nae-t: NONESP-encap: [|isakmp]
09:58:03.126574 IP DestMachine.ipsec-nae-t > computer.ipsec-nat-t: NONESP-encap: [|isakmp]
09:58:03.126727 IP computer.ipsec-nat-t > DestMachine.ipsec-nae-t: NONESP-encap: [|isakmp]
09:58:03.128784 IP computer.ipsec-nat-t > DestMachine.ipsec-nae-t: NONESP-encap: [|isakmp]
Can anyone tell me what to look for/what settings to check, etc.
What to check in kernel, what setting could be missed ? ? ?
Got VPNC working [solved]
In order to get mine to work, I disabled configuration options that I previously set in the kernel for KVM:
unchecked Virtualization, left TUN/TAP as module, and unchecked bridging & Vlan support, see below.
Works now without crashing.
Also to note, I believe you must load TUN first before running vpnc
[ ] Virtualization --->
# this needs to still be checked for VPNC, so I left that
Device Drivers --->[*] Network device support --->
<M> Universal TUN/TAP device driver support
Networking options --->
<*> 802.1d Ethernet Bridging │ │
│ │ <*> 802.1Q VLAN Support
vpnc can't connect internet once connected to VPN
After connecting vpn using vpnc. I can not access the internet. My /etc/resolv.conf seems ok, but I am guessing there must be some addition routing that needs to be done.
Does anyone know how to do this?