how to view the network components involved in a connection?

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Paul Williams

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Mar 2, 2022, 11:23:42 PM3/2/22
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Dear Sirs,

We have a kubernetes pod connects to an external ip.  On the kubernetes node, the connection goes through 
  • the network interface on the pod, 
  • the veth device on the container integration network, 
  • the gateway on the container integration network, 
  • the network interface on the node before onto the external network.  

When I use the sysdig command like the following:

sudo sysdig -pc -A -c echo_fds "(fd.ip=xxx.xxx.xxx.xxx and fd.rport=636)"

sysdig displays the traffic from and to the container in the pod, which can be assumed to be the first component above, but not other devices.  Is there a way to get sysdig to show all other devices as traffic passes through them?

Sincerely,

Paul
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