Subrata Biswas:
@Mahesan G PODs inside a node communicates via veth connected to brigde which is managed by bridgecltr . But for a pod to communicated with other pod in another node ,it needs a gateway and to stretch layer2 broadcast domain it needs to encapsulate the L2 frame in L3 packet via overlay network where node interface becaomes VTEP.and for that to happen you will need a networking plugin which perform this functions such as calico,flannel,cisco aci ,weavenet etc. You can also achieve this using netsn (Linux Namespace by using interface as a gateway and setting route)
Mahesan G:
Thankyou a lot for explaining. So it’s not a nat right I’m confused between nat and gateway. Can you share any resources for networking @Subrata Biswas
Liam:
one of the best videos about networking in container/k8s I found :
https://www.youtube.com/watch?v=6v_BDHIgOY8
Mahesan G:
Thankyou liam