Hello,
Please provide the output you get when you run:
$ uname -a
$ modprobe crc32c
$ modprobe ipcomp6
Thanks.
** Changed in: ipsec-tools (Ubuntu)
Sourcepackagename: ipsec-tools => linux-source-2.6.15
Status: Unconfirmed => Needs Info
--
racoon-0.6.5-4ubuntu1 fails to configure
https://launchpad.net/bugs/44246