Hi Ant, The problem you are having is in relation to the Guest VLANs. When you completed the new Zone wizard you would have entered a VLAN range for the Guest Network. Your switch also needs to be configured for tagged VLANs covering the ranges you entered for the Guest and Public Networks.
A Guest VLAN is assigned to each Account and is used to enable each Guest Instance to talk to other Guest Instances within the Account, and also their Virtual Router, which is their Default Gateway and provides acces to the Internet. If the VLAN is not configured on the switch, the traffic cannot pass between Hosts. Guest Instances running in the same Host as the Virtual Router will be able to access the Internet, but Ones running on other Hosts will not. Geoff On 23 Jun 2012, at 04:57, "Anthony Goddard" <agodd...@mbl.edu> wrote: Hi all, I have a new install of CS 3, setup using advanced networking. I've added a single host which works fine, DHCP assigns an address, the machine can access the internet etc. When I add a second host, instances on the second host fail to get IP addresses (they timeout while waiting for a DHCP response). If I set the addresses statically, the instance can't access anything over the network. If I live-migrate the virtual router system VM to the second host, it then can get a DHCP address and access the internet, however migrating the virtual router system VM off the original host renders the original host unable to get an IP and breaks outbound traffic on it. Is there somewhere obvious I'm going wrong, or something obvious I might be missing? Cheers, Ant --- Anthony Goddard Woods Hole Marine Biological Laboratory ShapeBlue provides a range of strategic and technical consulting and implementation services to help IT Service Providers and Enterprises to build a true IaaS compute cloud. ShapeBlue’s expertise, combined with CloudStack technology, allows IT Service Providers and Enterprises to deliver true, utility based, IaaS to the customer or end-user. ________________________________ This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales.
