Guest VMs cannot access Internet

February 06, 2016 21:18

Guest VMs cannot access Internet

Hi all,

I have a new CloudStack 4.8 install running with KVM on CentOS7. It is setup with advanced networking using vlan isolation.

The SSVM works great and i deployed a new guest VM using the Centos5.5 default image,

The Centos5.5 guest VM can ping the virtual router. The virtual router can ping the Internet and the guest VM. However, the guest VM cannot ping the Internet. The guest VM can do name resolution when using the virtual router as its dns server.

We are doing Source NAT, the virtual router has a Internet IP address. I can do additional troubleshooting, just let me know what you need.

Thank for any help you can provide!

Sean

Sean Lair MEMBERS 06 February 2016 - 21:18 PM

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Administrator

March 23, 2016 07:35

Guest VMs cannot access Internet

Sean, have you tried setting up the "Egress Rules" for this network? If not, I'll start there.

Also, I am assuming that you are able to access/ping the internet from the virtual router? If not, then we'd first need to sort that out by ensuring that the default gateway on the virtual router is pointing to the one set for the public interface and that particular gateway is allowing traffic to the internet.

Somesh Naidu CITRIX EMPLOYEES 16 February 2016 - 16:28 PM