[libvirt-users] unable to ping from guests in virbr0 to guests in virbr1 network

Hi all, I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding networking between them. The 2 RHEL4 system's use default bridge virbr0 and get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167) I created another bridge (virbr1) with NAT forwarding (no dhcp). The network i choose was 192.168.100.0/24. And the third system (RHEL6) was assigned static ip-addres 192.168.100.101, 192.168.122.0/24 series , but guest systems in 192.168.122.0/24 are not able to ping RHEL6 system (in virbr1) network. 192.168.100.1) , but not the RHEL6 system Versions: Fedora release 16 (Verne) libvirt-0.9.6.3-1.fc16.x86_64 qemu-kvm-0.15.1-8.fc16.x86_64 Any hints on what could be the problem Regards Niranjan