Hi all,

I am using fedora 15 in my physical machine (we can say it PC1) i have kvm, i installed fedora 15 in kvm (PC2) as virtual machine, i have installed another virtual machine (PC3) in PC2, means i did nested virtualization. Now problem what I am facing is.

PC1 ethernet interface virbr0 (192.168.122.1/24, ip forwarding is enable, ip route table is also updated) is connected with PC2 interface eth0 (192.168.122.155/24, ip forwarding is enable, ip route table is also updated), I have another port in PC2 with virbr1 (192.168.100.1/24, ip forwarding is enable, ip route table is also updated) which is connected with PC3 eth0 (192.168.100.168/24, ip forwarding is enable, ip route table is also updated)

Now my PC1 is able to ping both interfaces of PC2 and PC3 is also able to ping both interfaces for PC2 but PC1 is not able to communicate with PC3....

can any one please tell me where i am lacking in configuration

Thanks in advance....

It appears you did not enable IP forwarding on PC2. Or prehaps there is an iptables rule somewhere blocking the traffic. Traceroute and tcpdump/wireshark will help investigating.

Thanks for your reply

i have enabled ip forwarding, disabled selinux & iptables but not success, however I am using NAT for all virtual machine and I am getting feeling might be bcz of it, it is not working, i tried to use routed network but might be im doing something wrong some where so if u don't mind can you tell me how can i make routed network in KVM.