Hello, Have read nice article about CS and advanced network set-up here: http://shapeblue.com/cloudstack/understanding-cloudstacks-physical-networking-architecture/, but have problem with routing.
Let me say I have only 1 NIC with all the trunks 100, 200, 300 configured as in KVM configuration guide (http://docs.cloudstack.apache.org/projects/cloudstack-installation/en/latest/hypervisor/kvm.html ). · cloudbr (no tag) top-level bridge for trunks mgmt0, cloudbr0, cloudbr1. · mgmt0 (VLAN 100) bridge has 172.17.1.2 adress and is responsible for hosts network 172.17.1.0/24. · cloudbr0 (VLAN 200) bridge does not have any IP address and is responsible for public network (not used if „security group“ is enabled) · cloudbr1 (VLAN 300) bridge does not have any IP address and is responsible for guest network 192.168.1.0/24 · cloud0 (no tag) – system bridge that is created by cloudstack-agent during host registration. Has IP 169.254.0.1 and manages local-link network 169.254.0.0/16. Acts as gateway for 169.254.0.0 network After setting up cloudstack every system VM gets basically 3 IPs (no problem with this): 1. link local IP, for example: 169.254.0.10 2. private IP, for example: 172.17.1.105 3. public IP, for example: 192.168.1.5 (gw 192.168.1.1 is defined during CS installation, but physically does not present anywhere) There is no problem to communicate within networks 1 and 2, because first one configures cloudstack itself and host network is configured by switch KVM host is connected to. The only question so far: where to configure routing for 3rd network (if it is possible)? I got error „no route to host“ from SSVM, because default route is trough 192.168.1.0 network. May be NAT is needed? Can I define private and public networks from different sub-nets ? Should I configure cloudbr1 IP manually ? Or there is something else? Thank you, Vadim