Title

Two or more edge gateways must be deployed connecting the network virtualization platform (NVP) and the physical network. (Cat III impact)

Discussion

An edge gateway is deployed to allow north-south traffic to flow between the virtualized network and the physical network, including destinations outside of the data center or enclave boundaries. The gateway establishes routing adjacencies between the virtual routers and physical routers. The gateway can also filter the north-south traffic to enforce security policies for communication between the physical and virtual workloads. Deploying two or more edge gateways eliminates the risk of a single point of failure, thereby ensuring there is always reachability between virtual machines and the physical network infrastructure and reducing the risk of black-holing north-south traffic.

Check Content

Review the network topology diagram for both the physical infrastructure and the NVP to determine if two or more edge gateways have been deployed between the virtual and physical networks. If two or more edge gateways connecting the NVP and the physical network have not been deployed, this is a finding. Note: This requirement is not applicable if hardware switches are deployed as VTEP devices that also function as gateways between VXLANs and between VXLAN and non-VXLAN infrastructures.

Fix Text

Deploy two or more edge gateways connecting the network virtualization platform and the physical network.

Additional Identifiers

Rule ID: SV-87769r1_rule

Vulnerability ID: V-73117

Group Title: NET-SDN-027

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.