I am running virtual machines on an Ubuntu Host (10.4). The VMs run Gnome and have browsers that can reach the Internet. The VMs are on a subnet. For the sake of argument, the VMs are on 192.168.0.X/24 and the host is on 192.168.5.X/24. Right now, the VMs via their browsers can reach the router/firewall login page, which I would like to prevent while leaving them the ability to get to the Internet.
Q: Is there an IPTable rule (or one in ufw) someone could suggest that:
a) would prevent the virtual machines from reaching the router login page (on the same subnet as the host) and
b) still allow VM browser access to the Internet
Any help appreciated!