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MOSK

Communications between Mirantis OpenStack for Kubernetes (MOSK) components are provided by the Calico networking. All internal communications occur through the Calico tunnel through the VXLAN or WireGuard protocols.

Caution

These ports are only used for in-cluster communications. Open them only to a trusted network and never at a perimeter firewall.

Component	Protocol	Port	Description
Calico VXLAN	UDP	4792	Calico networking with VXLAN enabled
Calico WireGuard	UPD	51820	Calico networking with IPv4 Wireguard enabled

In-cluster communications between MetalLB speaker components are done using the LCM network. MetalLB components also provide metrics to be collected by StackLight.

Caution

These ports are only used for in-cluster communications. Open them only to a trusted network and never at a perimeter firewall.

Component	Protocol	Port	Description
MetalLB MemberList	TCP/UDP	7947	MetalLB speaker communications using MemberList
MetalLB metrics	TCP	7472	MetalLB controller & speaker metrics