IP Address Management (IPAM)

IP Address Management (IPAM) is responsible for the allocation and management of IP addresses used by network endpoints (container and others) managed by Cilium. Various IPAM modes are supported to meet the needs of different users:

Feature

Kubernetes Host Scope

Cluster Scope (default)

Cluster Scope v2

CRD-backed

AWS ENI

Azure IPAM

GKE

Tunnel routing

Direct routing

CIDR Configuration

Kubernetes

Cilium

Cilium

External

External (AWS)

External (Azure)

External (GCP)

Multiple CIDRs per cluster

N/A

N/A

N/A

N/A

Multiple CIDRs per node

N/A

N/A

N/A

N/A

Dynamic CIDR/IP allocation