Description of problem:
I am connecting to a Macbook running Mac OS 10.5 which has a shared Internet
connection. For some reason, Mac OS 10.5 does not seem to start a DHCP server
when sharing the Internet connection, so I used static IP settings. However, the
routing got set up incorrectly - the route for the local network was missing,
and the default route was also missing (probably as a consequence, because if
you try to add the latter route manually at the command line, without first
adding the former, you get an error message).

Version-Release number of selected component (if applicable):
system-config-network-1.5.5-1.fc8

How reproducible:
Always

Steps to Reproduce:
1. Type in settings as in attached config file
2. Activate interface
3. route -n
  
Actual results:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 wlan0

Expected results:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.0.2.0        0.0.0.0         255.255.255.0   U     0      0        0 wlan0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 wlan0
0.0.0.0         10.0.2.1        0.0.0.0         UG    0      0        0 wlan0

Additional info:
The Macbook has two IP addresses assigned to its wireless interface. I don't
know why, and I don't have a clue how Fedora assigns one route based on the
Macbook's *other* IP address!

This was the only workaround that worked for me: Save the following as
/sbin/ifup-local:
#! /bin/bash -eup
if [ "$1" = "wlan0" ]; then
  route add -net 10.0.2.0 netmask 255.255.255.0 dev wlan0
  route add default gw 10.0.2.1
fi

and make it executable.