So we found that router was compromised so we have cleaned it and properly secured, but from this moment router is receiving a huge amount of packets coming form outside to DNS TCP , afcourse as i have said all this is secured and outside DNS queries are dropped. But all this traffic comming to my router is pissing me of how to fight this , can i some how redirect or i have to call ISP and ask to change IP?
By the way cpu is ok but memory is almost used in full