Very Computer

Hi,
I have question about ipsec configuration - in my case under openswan.
In my config file I've:
left=172.18.1.2
leftsubnet=10.0.0.0/24
right=172.18.2.2
rightsubnet=192.168.20.0/24
in which I would like give the possibility to tunnel only one machine
from left part: 10.0.0.34 not all network 10.0.0.0/24
How may I do it ?

Greetings
Admo