The setup might seem a bit complex, but once you understand it and become familiar with it, it will ease your work so much.Ĭreate a test network namespace: ip netns add testĬreate a pair of virtual network interfaces (veth-a and veth-b): ip link add veth-a type veth peer name veth-bĬhange the active namespace of the veth-a interface: ip link set veth-a netns testĬonfigure the IP addresses of the virtual interfaces: ip netns exec test ifconfig veth-a up 192.168.163.1 netmask 255.255.255.0 If your kernel allows it, capturing the network traffic of a single process is very easily done by running the said process in an isolated network namespace and using wireshark (or other standard networking tools) in the said namespace as well. I know this thread is a bit old but I think this might help some of you:
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