I have a pix 515 running version 634 with four interfaces, for example, outside, inside, dmz and lab. I need to be able to connect to devices that is located on both the dmz and lab from inside. I also need to connect to devices that is located on the dmz from lab. The lab has a higher security than the dmz. I am also using remote access vpn. I would really appreciate if someone can help me with this as i have been working on it for a few days now.