Replace iptables with socat for SR OS #230
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iptables is a bit of a problem. The zoo with iptables [legacy], nftables and distros is hard to manage.
Socat might be way more reliable.
Issues
The problem with socat is that we don't have a way to perform SNAT when SR OS initiates a connection towards the outside network. It will come with SRC IP of BOF primary interface, and containerlab host won't be able to route it...