On Apr 5, 2005 3:18 PM, Jeroen Geusebroek <j dot geusebroek at gmail dot com> wrote:
> Again i would like to raise the question about routing multiple subnets over
> a single IPSEC tunnel.
> 

http://m0n0.ch/wall/docbook/faq-ipsec-multiple-subnets.html

CIDR summarizing them is equivalent to Cisco adding to match address. 
If that isn't possible, it should be possible to add another IPsec
tunnel between the two endpoints.  The above is tested and verified
from m0n0wall to m0n0wall.

-Chris