interface layout & nvram cleanup

i'm trying to get the interface information for the WRTSL54GS straightened out so I can start setting up the DMZ. i found network config info in the wiki, including a diagram for my old WRT54Gv2.2, but not one for the new router. i'm in the middle of modifying the diagram to match the new router, but there's a lot of info - none of it too clear. i've posted on the openwrt forums asking for clarification. actually, i'm looking at making 2 diagrams - the "default" as shipped and my config - which will be w/o the bridge interface, with a dmz interface and a openvpn tunnel inteface setup.

in an effort to clarify things, i decided to tidy up my own setup by cleaning up the NVRAM variables (the safe way). so far, so good - after a reboot it's still there. :-)

root@OpenWrt:~# cd /tmp
root@OpenWrt:~# wget http://downloads.openwrt.org/people/kaloz/nvram-clean.sh
Connecting to downloads.openwrt.org[195.56.146.238]:80
nvram-clean.sh  100% |*************************************|  4702  00:00 ETA
root@OpenWrt:~# chmod a+x /tmp/nvram-clean.sh
root@OpenWrt:~# /tmp/nvram-clean.sh
Before: size: 11055 bytes (21713 left)
After: size: 3541 bytes (29227 left)
root@OpenWrt:~# nvram commit