Try to prioritize the icmp traffic in QoS to make sure packets are not delayed.
Are you definitely sure the tunnel can handle 4Mbps? Could something else utilize the ethernet interface that tunnel goes through?
Routing and Bridging Firewall Solutions
Try to prioritize the icmp traffic in QoS to make sure packets are not delayed.
Are you definitely sure the tunnel can handle 4Mbps? Could something else utilize the ethernet interface that tunnel goes through?