[CentOS] establish a 128 bit encrypted tunnel between centos 5.2 boxes

Jerry Geis wrote:
> Is there an easy way or anyway to establish a 128 bit encrypted tunnel 
> between a handful of centos 5.2 boxes?
>
> I am not familiar with this at all. 
The newest 'player' in this is HIP.

Code and docs at http://infrahip.hiit.fi/.

But HIP is NOT tunneling in the 'classic' IPnIP sense. It does not do 
port mapping like SSH. But it does mobility and multihoming that they do 
not do.