Hi, I am wondering is it possible to do "selective" packet mirroring. From previous question, I learnt how to enable port mirror on OVS port but I think that I should do "selective" packet mirroring since performance issue.
So, basically, I want to enable some sort of "filter" and want to mirror only specific filter. (like ARP, DHCP...) Basically, I created tap interface by using linux TUN module and want to send those packet to tap and make user-space application to listen it. Tried "actions" with multiple destination but, what I really want is kind of "mirror" type of thing - send an original packet to regular L2 forwarding module and send a copied packet to "TAP" interface. (Tried actions=normal,output:tap0 but doesn't work). In this case any good solution? any filter is available on ovs-vsctl command(I tried to find but only "port option" is available) or should I send the packet to specific "table" first by specifying actions (like actions=table0,tap0) and in that table, should send the original packet to l2 module(normal) ?? Please share your experience / knowledge with me. Thanks in advance!!! Best regards, - yongseok
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