1   Introduction

FreeS/WAN is available under Debian (testing, unstable) as the package freeswan.

2   Kernel

You have to compile recompile the kernel to make it work.

cd /usr/src
apt-get install kernel-source-2.4.9
apt-get source kernel-image-2.4.9-foo

tar xfj kernel-source-2.4.9.tar.bz

cp kernel-image-...foo./config/foo kernel-source-2.4.9/.config
cd kernel-source-2.4.9

export PATCH_THE_KERNEL=YES
make-kpkg --revision foobar01 --added-patches freeswan --append-to-version -freeswan-foo --initrd --config=menuconfig binary

make-kpkg --config=menuconfig --revision twinspot01 --append-to-version -freeswan-686-smp --added-patches freeswan --initrd binary

OBSERVE! It does not compile on a 2.4.9 kernel, 2.4.8 works though NOT!.