Alternatives for IPSec?

["Jyri Hovila" <jyri.hovila@iki.fi>]

Hello everyone!

I wasn't able to find anything on this from the archives, so:

I'm having a problem with one ISP who does not allow customers to use
ESP protocol. Are there any alternatives to IPSec for creating VPN
tunnels between two OpenBSD 3.0 gateways?  On Linux there's Cipe but I
haven't managed to find anything similar for OpenBSD. Cipe won't compile
on OpenBSD: it requires Linux kernel source to be available so I suppose
there's no way it could work with OpenBSD.

Thanks in advance!

Yours,

Jyri