please can someone explain this to me …
Do you have a firewall or route that is dropping traffic from the LAN side? That would be my first guess.
no…
but I have a queue tree for youtube to limit it, I used PCQ
the surprise was when I stopped the queue then the problem solved !!!
any idea about that ??
The queue can drop packets but the are still arriving. The dropped packet count in the queue may show you the difference.
but I limit it in prerouting where the in interface is eth3 (WAN)…
so why I will have this difference in input and output ?
Any IP packet which the router receives but does not forward will show up as in imbalance on the interface rx/tx totals.