Linux, IPSec, and VPNs (Oh my)

[Chris]

Does anyone have any experience with IPSec VPN clients on Linux distros? My VPN (Which I really want to use) relies on IPSec. It is easy to set up/configure in XP, but I have been unable to find any good documentation on Linux Setups/Configs and Linksys provides zero Linux support.


I am using a Linksys WRV54G VPN-Router.

[bascule]

Can't help you with LUNIX, although I am familiar with isakmpd in OpenBSD...

[renderman]

Most of my work is in OpenBSD as well, however...

I recall somewhere that the FreeS/WAN on Linux plays nice with Linksys kit. Correct me if I'm wrong.

http://www.freeswan.org/

[lil_freak]

This site has saved me a lot of grief when I've needed some form of documentation on Linux Setups/Configs. Hope it helps :) .

http://www.ecst.csuchico.edu/~dranch...OS-c.html#toc1

[converge]

.. for the total newbs on this topic, www.shmoo.com has a pretty decent, quick and dirty FAQ on VPNs/IPSEC that will at least get you into the topic... right about <here>

[panthera]

Linux VPN's

I've got a great book "Building Linux Virtual Private Networks" - Oleg Kolesnikov and Brian Hatch.

I found it very helpful in introducing me to FreeS/WAN and it's configuration files. http://www.freeswan.org/

Here's slashdot's review of the book.
http://slashdot.org/books/02/02/27/0....shtml?tid=172

Good luck,
Panthera

[|Eight|Ba||]

heh

IPSec is a public/private key encryption algorithm used by Cisco Systems. IPSec uses a Diffie-Hellman exchange in order to perform authentication and establish session keys. IPSec also uses a 40-bit Data Encryption Standard (D.E.S.) algorithm in order to encrypt the data steam, so IPSec with use of your VPN is a good combo. IPSec is very convienient to use. cisco integrated IPSec into its router line of products, unfortunately its used for buisness use, and costly.
Ex. http://www.cisco.com/en/US/products/...632/index.html

-enjoy

[Chris]

IPSec is a public/private key encryption algorithm used by Cisco Systems. IPSec uses a Diffie-Hellman exchange in order to perform authentication and establish session keys. IPSec also uses a 40-bit Data Encryption Standard (D.E.S.) algorithm in order to encrypt the data steam, so IPSec with use of your VPN is a good combo. IPSec is very convienient to use. cisco integrated IPSec into its router line of products, unfortunately its used for buisness use, and costly.
Ex. http://www.cisco.com/en/US/products/...632/index.html

-enjoy

Gee thanks Webster, but how does that answer the original question?

Stop posting inane replies in these posts or I'm going to show you the door.

[dshin]

I use cisco's vpn-client 403b on slackware 9.1 with 2.6.x kernel, it's difficult to find it on cisco's page, and they only offer the vpn_client 401 as the official last stable release.
Everything runs ok (2.4.2x are aproblematic, too), but if not, you'll have a problem to find out why. Ther aren't kind of verbose error-messages or something.
on 2.6.0 , 2.6.1 it works well, but on 2.6.2 it hangs when i start it. later, when i type
#>ifconfig or
#>iwconfig (we use vpn at university)
it hangs, too. some kind of deadlock ?