Opened 15 years ago
#6992 new enhancement
Add protections again DHCP rogue activity
| Reported by: | UglyPercy | Owned by: | |
|---|---|---|---|
| Component: | network | Version: | VirtualBox 3.2.4 |
| Keywords: | Cc: | ||
| Guest type: | other | Host type: | other |
Description
With certain guest OS setups, it is very easy for the VB DHCP servers to turn into rogues, answering DHCP requests from other physical computers on a LAN (potentially many on a huge LAN). This is a very unpleasant phenomenon, potentially career-ending for the engineer in some environments.
If there is any way so, by default, restrict VB DHCP servers such that not only would they only serve requests seen on Host-Only interfaces, but would only serve requests actually generated by interfaces associated with local guest VM's, it would be very helpful (seems like a quick MAC address check would be 99% of the solution). That way, even confusing setups involving accidental guest OS bridging (e.g. Linux "brctl") between Host-Only and Bridged/NAT adapters would not cause LAN disasters.
