domr
DomR, short for domain router, refers to a specialized virtual router used in cloud networking environments, most notably in Apache CloudStack. It runs as a system virtual machine on hypervisor hosts and serves as the network appliance for user networks, providing essential services at the network edge.
Functionally, a domR delivers DHCP, DNS, NAT, firewall filtering, and routing between a guest (user) network and
Deployment and management of domR instances are automated within CloudStack. The management server deploys domR VMs
Relation to system virtual routers: In CloudStack terminology, the domR implements the functionality of the system
Security and performance considerations: Because a domR runs as a dedicated VM, its performance depends on
See also: CloudStack, system virtual router, NAT, DHCP, VLAN.