Good day, Has anyone managed to successfully create a site to site IPSec tunnel between BSD with ipsec-tools and Windows ISA 2004? We're trying to get this up and running locally on a test network and not having much success. The tunnel between the two sites comes up, and traffic from BSD private to ISA private seems to be flowing, but return traffic appears to be flowing from the ISA private side to the BSD public address. I was just curious if anyone has done any work getting these two talking so I can not reinvent the wheel. Thanks, Mark Thomas - thomas@pbegames.com http://www.pbegames.com/~thomas