[wplug] DSL prep

[Brian A. Seklecki]

> Don't most hardware routers block incoming connections on
> specific ports unless you open them?  That was the default on
> my Linksys and DLink routers, I then only opened up ssh to
> my file server.

Most hardware routers (aka, "Cisco IOS 12.x") are stateless IP
forwarding engines.

Everything else is glorified NAT+PAT and inherently block incoming ports
by virtue of the NAT+PAT RFC1918 address translation.

~BAS