Network unreachable == routing problem
PCMCIA Network Adapter Issues
Destination Host Unreachable (David Walden)
Date: 1999, Nov 15
From: David Hinds <firstname.lastname@example.org>
Your "netstat -r" may show a route to your gateway, but there must still be a problem with your routing info. "Network unreachable" always means a routing problem. Perhaps your gateway address isn't on the same subnet as your own IP address. If you can't sort it out, post the actual "netstat -rn" output.
RE: Network unreachable == routing problem by David Walden, 1999, Nov 17
Another view on this problem by John Jervis, 2000, Jan 05
to: "Network unreachable == routing problem"