To see what routes are necessary, you can use the following Kubernetes commands.

For most CNIs the following can be used:

kubectl get nodes -o jsonpath="{range .items[*]}{'Destination: '}{.spec.podCIDR}{'\t'}{'Gateway: '}{.status.addresses[0].address}{'\n'}{end}"

For example:

[root@master-node ~]# kubectl get nodes -o jsonpath="{range .items[*]}{'Destination: '}{.spec.podCIDR}{'\t'}{'Gateway: '}{.status.addresses[0].address}{'\n'}{end}"
Destination: 192.168.0.0/24	Gateway: 10.1.151.30
Destination: 192.168.1.0/24	Gateway: 10.1.151.31
Destination: 192.168.2.0/24	Gateway: 10.1.151.32

The above command tells us what routes are needed on the LoadMaster and you can add these routes in the LoadMaster UI by going to System Configuration > Network Setup > Additional Routes.

Destination

Gateway

192.168.0.0/24

10.1.151.30

192.168.1.0/24 10.1.151.31
192.168.2.0/24 10.1.151.32