On Mon, May 24, 2010 at 12:52:40PM +0100, Neil Wilson wrote: > You need to be very careful not to hit a valid use case here. > > RFC3069 provides for a mechanism whereby a supernet/subnet system is > setup to allow better use of available IPv4 address space. This is > becoming of increasing concern as IPv4 space exhausts. > > To implement this you turn on Proxy ARP on a host and inject /32 > routes advertised from other hosts into the routing table. The network > on the current host has a wide subnet mask (for example 10.0.0.0/8), > so that the host responds to ARPs for VM guests that are actually on a > completely different host. The current network code only supports NAT, or a separate routed subnet & thus currently require a non-clashing subnet. Proxy ARP is a future RFE, so not a problem wrt this patchset currently. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list