I run Fedora 20 (3.13.10-200.fc20.i686) inside VirtualBox on a Windows 7 SP1 host. The Ethernet adapter on the guest is configured as a Bridged Adapter in VBox, and gets an IP via DHCP. Here's the routing table on the guest:
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 router 255.255.255.255 UGH 1024 0 0 p2p1 default router 0.0.0.0 UG 1024 0 0 p2p1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 p2p1
Every so often (every day, perhaps), the 1st entry in the routing table disappears; as a result, I can make outbound connections to the intranet, but not to the Internet.
How do I find out who's modifying the routing table? Are there logs I could look at?
[P.S. I asked this on superuser, but got no response, so trying here.]