routing question

I'm unable to reach local networks from the new fc3 box, that I've never had trouble with using other unixes (or Slackware for that matter). It's been my experience that simply kicking off routed or gated was all it took to make the world accessible. FC3 is different!

We have several networks here at work and my question is, how do I set up the routing table to reach them? Example:

16.140.160/24  <-- fc3 box is on this one
16.47.32/24
16.32.176/24
..several others..

Here's the output of route(8):

Kernel IP routing table
Destination  Gateway        Genmask       Flags Metric Ref Use Iface
16.140.128.0 16.140.128.238 255.255.255.0 UG    0      0     0 eth0
16.140.128.0 0.0.0.0        255.255.255.0 U     0      0     0 eth0
169.254.0.0  0.0.0.0        255.255.0.0   U     0      0     0 eth0
0.0.0.0      16.140.128.238 0.0.0.0       UG    0      0     0 eth0

eth0 is 16.140.128.238

I can reach anything on the home network, 16.140.128, but nothing on any of the others. What have I screwed up/left out?

thanks
--
Douglas Frank
HP Co.
110 Spit Brook Rd.      Blessed are the Bewildered
Nashua, NH 03062 USA           for they won't notice