Vpnc Ipsec



Vpnc-0.2-rm+zomb-pre9.tar.gz Sun May 2 05:32:00 CEST 2004 Fixed PIX supported (and PIXs are broken (-;) send and ignore lifetime update in isakmp-sa/ipsec-sa Fixed vpnc-connect to supporte load-balancing, see below added -script which gets all modecfg infos like dns-server. Crypto ipsec security-association pmtu-aging infinite crypto map cmvpnc 10 match address aclvpn crypto map cmvpnc 10 set pfs crypto map cmvpnc 10 set peer 172.22.10.5 crypto map cmvpnc 10 set ikev1 transform-set ESP-AES-256-SHA crypto map cmvpnc 10 set security-association lifetime seconds 86400 crypto map cmvpnc interface isp1. May 26, 2014 IPSec gateway 127.0.0.1 IPSec ID laughing-vpn IPSec secret hahaha Xauth username geoffk Note that all strings start exactly one space after the keyword string, and run to the end of the line. This lets you put any kind of weird character (except CR, LF and NUL) in your strings, but it does mean you can't add comments after a string, or spaces. Preferred method: Use vpnc-disconnect. Sudo vpnc-disconnect. This will, for example, print. Terminating vpnc daemon (pid: 21763) vpnc-disconnect is the official method of stopping vpnc and will terminate the vpnc instance whose PID is written in /var/run/vpnc.pid.

vpnc is a VPN client for Cisco hardware VPNs.

Vpnc

Sudo apt-get install network-manager-vpnc. Sudo apt-get install network-manager-openvpn. Not covered on this page, so far. Click on the network-manager in the system tray; Choose VPN Connections - Configure VPN.

Installation

Install the vpnc Octoplus box samsung software version 2.4 7 crack. package.

Configuration

The vpnc configuration files are in /etc/vpnc. It contains a default.conf file that you can copy and modify for your setup.

Executing vpnc --long-help will provide the names and descriptions of the various configuration options. For instance, in that output you will see

which translates into a line like this in your configuration file:

Starting

Site

The vpnc package comes with a systemd unit vpnc@.service. If you want to use the configuration file /etc/vpnc/client.conf, you would start it with systemctl start vpnc@client.

Troubleshooting

In case the vpnc client crashes with:

you will need to monkey patch the the software because an assertion is failing with the latest updates. The princess is calling ringtone.

Download the sources from https://svn.unix-ag.uni-kl.de/vpnc/trunk/ and patch the file vpnc.c with the following:

Temporary workaround found here: https://bbs.archlinux.org/viewtopic.php?id=225556

Remember to change the PREFIX to /usr instead /usr/local so you overwrite the broken binary.

Retrieved from 'https://wiki.archlinux.org/index.php?title=Vpnc&oldid=655173'
Tuesday, 2 June 2015Vpnc

Update 2016-11-22

This article might not longer be relevant as a new opensource client called 'openfortivpn' exists that utilized the SSLVPN feature of Fortigate instead of IPSec. See my new article Connecto to Fortigate VPN with OpenfortiVPN.

This article might be relevant to you if you have problems connecting to a FortiGate IPSec VPN with Linux (vpnc). For example, when using NetworkManager, you might see something like this in syslog:

<info> VPN connection 'FortiGate VPN' (IP4 Config Get) reply received from old-style plugin.
<info> VPN Gateway: 1.2.3.4
<info> Tunnel Device: tun0
<info> IPv4 configuration:
<info> Internal Address: 172.20.1.1
<info> Internal Prefix: 32
<info> Internal Point-to-Point Address: 172.20.1.1
<info> Maximum Segment Size (MSS): 0
<info> Forbid Default Route: no
<info> Internal DNS: 172.1.1.1
<info> No IPv6 configuration
<info> VPN connection 'FortiGate VPN' (IP Config Get) complete.
<warn> (11) failed to find interface name for index
<info> Policy set 'FortiGate VPN' (tun0) as default for IPv4 routing and DNS.
<info> Writing DNS information to /sbin/resolvconf
SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/tun0, iface: tun0)
<info> VPN plugin state changed: started (4)
<info> VPN plugin state changed: stopped (6)

<info> VPN plugin state change reason: 0

Or, when you've using the command line interface:

vpnc version 0.5.3r512
IKE SA selected psk+xauth-3des-sha1
NAT status: this end behind NAT? YES -- remote end behind NAT? no
got address 172.20.1.1
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf
IPSEC SA selected 3des-sha1
vpnc: vpnc.c:1194: lifetime_ike_process: Assertion `a->next->type IKE_ATTRIB_LIFE_DURATION' failed.

So, after playing around with the VPN settings in the FortiGate UI I finally found that the problem is the 'a->next->type IKE_ATTRIB_LIFE_DURATION' part. It seems that FortiGate is using a wrong value for this field, or at least one that isn't accepted by vpnc.

Since it seems that there is not way to change this behaviour using configuration the only option you have is to patch vpnc. Fortunately, this is very easy, at least on Debian-Based systems (like Ubuntu or Mint). So, here's the way you go:

1. Create a FortiGate VPN configuration that is accessible from iOS devices (see this wonderful article on Just Daily Notes)

2. On your linux-client, install a build enviroment:

$ sudo apt-get install build-essential dh-make fakeroot devscripts
$ sudo apt-get build-dep vpnc

3. Create a working directory and download source files

$ mkdir -p vpnc-build
$ cd vpnc-build
$ apt-get source vpnc

You'll get some files like this:

$ ls -1
vpnc-0.5.3r512
vpnc_0.5.3r512-2ubuntu1.debian.tar.gz
vpnc_0.5.3r512-2ubuntu1.dsc
vpnc_0.5.3r512.orig.tar.gz

4. Edit vpnc-0.5.3r512/vpnc.c and locate the following line:

Vpn Ipsec Ssl

assert(a->next->type IKE_ATTRIB_LIFE_DURATION);

On my version this is line 1194, but this may differ. Remove it or place comments around this line (note that this is C code, not C++):

/* assert(a->next->type IKE_ATTRIB_LIFE_DURATION); */

5. Recompile vpnc:

$ (cd vpnc-0.5.3r512 && debuild -b -uc -us)

Now your working directory should contain a new .deb file:

$ ls -1
vpnc-0.5.3r512
vpnc_0.5.3r512-2ubuntu1_amd64.build
vpnc_0.5.3r512-2ubuntu1_amd64.changes
vpnc_0.5.3r512-2ubuntu1_amd64.deb
vpnc_0.5.3r512-2ubuntu1.debian.tar.gz
vpnc_0.5.3r512-2ubuntu1.dsc
vpnc_0.5.3r512.orig.tar.gz

6. Install newly compiled binary:

$ sudo dpkg -i vpnc_0.5.3r512-2ubuntu1_amd64.deb

Vpnc Ipsec 3

That is it, now your VPN connection should work - or at least don't die on this error.

Vpnc Ipsec Secret

You have to repeat this whenever there is a new version of this package. But since development stopped in 2008 I don't expect many updates to it. Alternativly, prevent any upgrades of the package with 'sudo apt-mark hold vpnc'.