Ok, for all you guys owning an HP TC1100 with the desire to run Linux on it, please check out what Andy Schofield wrote on this particular topic:
http://www.theory.bham.ac.uk/staff/schofield/linux/tc1100/index.htm

For all you who have a Compaq Evo N610C and want to run Linux on it:

Good luck!
http://www.fettig.net/articles/linux_on_the_compaq_evo_n610c/

Check the following link if you (too) get stuck on APM.
http://www.zippysoft.com/linux/evo_n610c/

Good information is hard to find.
Fortunately I found the following information on:
http://m0n0.ch/wall/list/?action=show_msg&actionargs%5B%5D=49&actionargs%5B%5D=67

> Free 3rd party IPSec clients for Windows
> —————————————-
> SSH Sentinel free for personal and academic use
> http://nts.wustl.edu/wireless/SSHSentinel1.3.2.2.exe
>
> SafeNet SoftRemoteLT 9.2.1. (DES/3DES only)
> http://www.sprintbiz.com/customer_center/product_support/vpn/
>
> Intel NetStructure VPN Clinet 7.01 (DES/3DES, 256/192/128 AES)
>
http://downloadfinder.intel.com/scripts-df/Detail_Desc.asp?ProductID=3D50=9&DwnldID=3D3559
>