Filtering and counting traffic based on the ethernet address

[Jonathan Horn <jonathan.horn97@xxxxxxxxxxxxxx>]

Hello,

I'd like to be able to filter and count the traffic caused by hosts
with known ethernet addresses. But my attempt to use a
ether_addr->counter name map with ether saddr & daddr failed, only
counting the part coming from the host, but ignoring everything the
host receives:

chain FORWARD {
                type filter hook forward priority 0; policy accept;
                iifname "lan0" counter name ether saddr map @internet_test
}

chain POSTROUTING {
                type filter hook postrouting priority 300; policy accept;
                oifname "lan0" counter name ether daddr map @internet_testb
}

Any help to accomplish this would be highly appreciated.

Cheers,
Jonathan