We are experiencing an issue where cisco router is pinging some servers with his wan ip.we didn't find the reason so we tried to block the ping,Despite applying ACL, I still see logs of the ping in the firewall, it's really weird because when I try t...

I am trying to measure a link speed I have a traffic generator machine.I want my Cisco ASR-1001 to loopback the traffic to the generator,What config do I need to use?I am trying to do it in Layer 3 and there is a switch in between.