Capturing tcpdump from CNE

4 Capturing `tcpdump` from CNE

Perform the following steps to capture tcpdump in CNE:

Run the following command to identify the worker node for the running pod:
```
$ kubectl get pods -n ocnadd -o wide
```
Login to the worker node and run the following command to search for the IP address of the pod:
```
$ ip a
```
Run the following command to start tcpdump on the identified network interface:
```
$ sudo tcpdump -n -s0 -i <interface> w <file-name>.pcap -Z <node-user-name>
```
Run the following command to change the file permissions:
```
$ chmod 777 <file-name>.pcap
```
Exit the worker node and run the following command to scp the file from the bastion host:
```
$ scp <user-name>@<worker node>:<path-in-workerNode-machine>
```