unable to connect with pod running in GKE

Question

1. Created 3 node GKE cluster.

2. From cmd prompt local logged into gcloud.

3. Created a pod with nginx container and exposed port 80

apiVersion: v1
kind: Pod
metadata:
  name: basicpod
  labels:
    type: webserver
spec:
  containers:
  - name: webcont
    image: nginx
    ports:
    - containerPort: 80

4. Now trying to do curl command curl http://<pod-ip> but getting timeout. my question is why iam getting timeout ? the same curl command work if execute inside pod. like kubectl exec -it basicpod -- /bin/sh and then inside pod execute curl http://<pod-ip>
   GKE cluster details:
   Networking
   Private cluster Disabled
   Network default
   Subnet default
   VPC-native traffic routing Disabled
   Cluster pod address range (default) X.X.X.X/X
   Service address range X.X.X.X/X
   Intranode visibility Disabled
   NodeLocal DNSCache Disabled
   HTTP Load Balancing Enabled
   Subsetting for L4 Internal Load Balancers Disabled
   Control plane authorized networks
   Disabled Network policy Disabled
   Dataplane V2 Disabled
   Security
   Binary authorization Disabled
   Shielded GKE nodes Enabled Confidential GKE Nodes Beta Disabled
   Application-layer secrets encryption Disabled
   Workload Identity Disabled
   Google Groups for RBAC Disabled
   Legacy authorization Disabled
   Basic authentication
   Disabled
   Client certificate Disabled

Answer 1

Curling inside the cluster it works. create service and expose it then do curl it works fine.

apiVersion: v1
kind: Service
metadata:
  name: basicpod-svc
spec:
  selector:
     type: webserver
  type: LoadBalancer
  ports:
    - nodePort: 
      port: 80
      targetPort: 80

Answer 2

Curling from inside cluster should work, curling from outside (browser as an example) you need to make sure firewalls are set up. + you need to expose the service through a LB as an example