Hi All, I have set up my 'cloud' with a basic zone automatically using cloudmonkey following the sample script in page https://cwiki.apache.org/confluence/display/CLOUDSTACK/CloudStack+cloudmonkey+CLI#CloudStackcloudmonkeyCLI-Installation
After that, I have done following tests: 1. Add two ISO images as templates, RHEL6.6 and Win7. 2. Add ingress & egress rules allowing 'ping' and 'ssh' 3. Create a RHEL instance and test 'ping' & 'ssh'. 4. Create a Win7 instance and test 'ping' Before step 4, thing are going as expected. I can ping rhel VM from external of the 'cloud', and ping external machines from within the rhel VM. However, I couldn't do the 'ping' with the Win7 VM. This is strange. Both VMs are in the same zone, and I created them the same way. Does anyone know anything about this 'problem' or did I miss anything? Any help/tips are appreciated. BTW, I use 4.8 releases. Regards, Xiaoming