Submariner only supports kube-proxy in iptables mode. IPVS is not supported at this time.
CoreDNS is supported out of the box for *.clusterset.local service discovery. KubeDNS needs manual configuration. Please refer to the
GKE Quickstart Guide for more information.
Clusters deployed with the Calico network plug-in require further configuration to be compatible with Submariner. Please refer to the
Calico-specific deployment instructions.
Within a cluster set, all the member clusters should be using the same IPsec IKE and NAT-T UDP ports.
Currently, Submariner does not support using custom ikeport and nattport on a per connection basis.
Globalnet
Globalnet only supports Pod to remote Service connectivity using Global IPs. Pod to Pod connectivity is not supported at this time.
Globalnet is not compatible with Headless Services. Only ClusterIP Services are supported at this time.
Globalnet annotates every Service in a cluster at the moment, whether or not it was exported.
Currently, Globalnet is not supported with the OVN network plug-in.
The subctl benchmark latency command is not compatible with Globalnet deployments at this time.