Bonding of IP tunnels


 
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Special Forums IP Networking Bonding of IP tunnels
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Old 07-04-2012
Bonding of IP tunnels

Hello.
Our Company is spreaded over Germany.
There are main offices an branch offices.
These offices are mostly connecte via multiple sdsl.
We build a IPSEC VPN Infrastructure using Aastaro Security Gateways appliances.
It seemed that only one VPN Connetion between to offices could be established.
There is no chance of bundeling multiple Connections to improve the availabilty and speed.
MLPPP is not supported.
I evaluated a solution to establish more than one VPN tunnel between two offices.
Now i directed two ip tunnels through the VPN Tunnels (IPROUTE2).
These IP tunnels are bonded with ifenslave.

If i connect the internal Routers direct to each other all works fine.
A disconnected Link doesn't trouble.
If i connect the internal Routers via the VPN Tunnel it works fine as long as both links are established. If one Link is lost only every fourth data packet will be transmitted.

Has anyone an idea why this happens?
Is there a better Way to implement multiple Tunnels?

Thanks
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GNUmed(1)						      General Commands Manual							 GNUmed(1)

NAME
GNUmed - an electronic MEDICAL record software for GP offices This is not fully featured yet. Use at your own risk. You have been warned. SYNOPSIS
gnumed [--quiet|debug] [--slave] [--text-domain=TEXTDOMAIN] [--log-file=FILE] [--conf-file=FILE] [--lang-gettext=LANGUAGE] [--ui=UI-TYPE] [--override-schema-check] [--local-import] [--help] [--version] [-V] [-h|?] DESCRIPTION
GNUmed is a solution for keeping safe and medically sound electronic records on a patient's health. It primarily focuses on GP offices. It is released under the GPL. GNUmed is written in Python with wxPython/wxWindows. Data is stored in a PostgreSQL database. Multiple clients can work with the same data- base at the same time. OPTIONS
--quiet Be extra quiet and show only _real_ errors in the log. --debug Pre-set the [debug mode] checkbox in the login dialog which controls increased verbosity in the log file. Useful for, well, debugging :-) Slower, too. --slave Pre-set the [enable remote control] checkbox in the login dialog to enable the XML-RPC remote control feature. --hipaa Enable HIPAA features with user workflow impact. Those features which do not affect the workflow of the user are permanently enabled. --text-domain=TEXTDOMAIN Set this to change the name of the language file to be loaded. Note, this does not change the directory the file is searched in, only the name of the file where messages are loaded from. The standard textdomain is, of course, "gnumed.mo". You need only specify the base name of the file without the .mo extension. --log-file=FILE Use this to change the name of the log file. The default log file would be <~/.gnumed/gnumed.log>. --conf-file=FILE Use configuration file FILE instead of searching for it in standard locations. --lang-gettext=LANGUAGE Explicitly set the language to use in gettext translation. The very same effect can be achieved by setting the environment variable $LANG from a launcher script. --ui=UI-TYPE Explicitely set the user interface type. Omitting this argument will default the interface to wxPython. Valid values are: web: CherryPy web client wxp: wxPython Python client (default) --override-schema-check Continue loading the client even if the database schema version and the client software version cannot be verified to be compatible. --skip-update-check Skip checking for client updates. This is useful during development or when the update check URL is unavailable. --local-import At startup adjust the PYTHONPATH such that the GNUmed client is run from a local copy of the source tree rather than from a proper system-wide installation. --version, -V Show version information about the GNUmed client and the database it needs. --help, -h, or -? Well, show this help. ENVIRONMENT
LANG, LC_MESSAGES, etc. See gettext(1) for how the various locale related environment variables work. FILES
~/etc/gnumed/gnumed-client.conf The system-wide configuration file. ~/.gnumed/gnumed.conf The user-specific configuration file. ~/.gnumed/gnumed.log The default log file. SEE ALSO
http://wiki.gnumed.de Detailed Wiki-style documentation http://www.gnumed.org Users' website http://www.gnumed.de German website http://savannah.gnu.org/projects/gnumed Mailing list home http://gitorious.org/gnumed Source code repository (Git) /usr/share/doc/gnumed/ Local documentation man -k gm-* List man pages on gm-* commands. gettext(1) BUGS
A lot of functionality is still missing. However, to make up for that, we deliver a plethora of bugs for your amusement :-) Use at your own risk. You have been warned. Take proper backups ! Manual for GNUmed 2011 May 10th GNUmed(1)