Delete Mac route at startup

The fact that its adding a route means it must be under the impression the network exists somewhere on one of its interfaces... is that range used anywhere within your organization ? or do you simply want it removed anyway ?

We have a 192.168.2.4 address set up to go to "lo4", but the route it is adding is 192.168.0/16.  We have other things on the network in that range that need to go out the default "en0" connection which is why I always have to delete the 192.168.0/16 route to be able to get to them.

what's the subnet mask set to on the lo4 interface ? is it set as a /16 ?

It's the loopback interface.  It's 255.255.255.255

and its not an option to have a different address on the lo4 interface ? it would appear that OSX is adding the route based on this, i admit that ive not seen this in the wild before.. I'll have a think.

Oops, the interface is actually lo0, if that makes any difference

check this page http://discussions.apple.com/message.jspa?messageID=5697532

the guy gives a nice post about adding static routes at startup, we could follow the reverse i.e

1. cd /Library/StartupItems
2. mkdir RemoteRoutes
3. cd RemoveROutes
4. Use your favorite editor (I recommend vi) to create a file named "RemoveRoutes" containing the following :

#!/bin/sh
#Tonyee, Tuesday, October 30, 2007

. /etc/rc.common

StartService ()
{
ConsoleMessage "Removing Static Routing Tables"
route del -net 192.168.0.0 255.255.0.0

}

StopService ()
{
return 0
}

RestartService ()
{
return 0
}

RunService "$1"

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then  ( sorry need to have multiple posts)

that should work - i'm altering some guys script, and im not logged into OSX currently but it 'should' work. As always, take care :)

and its route delete rather than route del :)