What does this bogus route (0&0x68 c8.c8.c8.c8...) mean in my routing table?
Although I couldn't reproduce it on my MacBook Pro (OS X 10.8.2), some users have reported a similar behavior, including the creation of a bogus route:

Destination        Gateway            Flags        Refs      Use   Netif Expire
(...)
128.0&amp;0x8600  ff.ff.ff.ff.0.0.0.0.0.0.0.0.5.ff.ff.ff.86.0.0.0.88.0.5.14.5.0.68.c.1.9.0.0.7.0. 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7f.ff.ff.ff.0.0.0.0.dc.5.0.0.0.0.0.0.8d.c.5a .4f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0. 0.0.10.2.0.0.a9.fe.0.0.0.0.0.0.0.0.0.0.14.12.5.0.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 .6.ff.ff.ff.ff.ff.0.0.7c.0.5.14.1.0.68.c.7.8.0.0.3.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 .0.0.0.0.7f.ff.ff.ff.0.0.0.0.0.40.0.0.0.0.0.0.0.0.0.0.0.c0.0.0.0.c0.0.0.0.0.0.0. 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.2.0.0.ac.1c.84 USc             0        4     en0


when putting the computer to sleep while using a VPN connection over WiFi. This doesn't seem to be your case, as you see such a route right after starting your Mac.

I can't tell you what's going wrong here, but there is a post in the link above that mentions that it could be fixed without a reboot like this:


  Turning off tcp/ip and turning it back on worked like a charm.


If you want to give it a try, open System Preferences, select the Network pane and, if necessary, click the lock icon to make changes:



Select your open connection from the list on the left hand side (Ethernet or WiFi), press the button Advanced..., select the TCP/IP tab, set Configure IPv4 to Off:



and confirm by pressing OK. Set TCP/IP back to its original setting.

Hope it helps.