Two Networks on one System

[Lars Kellogg-Stedman]

> This, in of itself, doesn't follow.  In the absence of stateful firewalls
> and anti-spoofing filtering (blocking packets that don't have a source IP
> address on the "expected" list),

While I can't comment on anyone else's environment, it is in my
experience very common in most corporate and educational settings for
routers to have anti-spoofing rules that will drop anything with an ip
address that does not originate on the local subnet.

-- Lars