gVisor CNI tutorial is not working as expected

Description

I followed https://gvisor.dev/docs/tutorials/cni/ set up networking for a gVisor sandbox using CNI

For the last step, the server doesn't return anything, which is unexpected, I might misconfigure something, otherwise, the CNI tutorial is broken.

$ curl http://${POD_IP}:8000/
curl: (52) Empty reply from server
$ sudo /tmp/runsc/runsc list
ID                PID         STATUS      BUNDLE                   CREATED                          OWNER
53b357804046593   1331824     running     /tmp/experiment/bundle   2024-08-08T18:17:09.909262116Z   root

Steps to reproduce

follow the tutorial at https://gvisor.dev/docs/tutorials/cni/

runsc version

gVisor HEAD

docker version (if using docker)

n/a

uname

No response

kubectl (if using Kubernetes)

No response

repo state (if built from source)

No response

runsc debug logs (if available)

No response