Our Cisco WAN has a pretty complex QOS configuration that marks all traffic with one of several DSCP values with a guaranteed bandwidth per class. The pings initiated by NPM for device up/down end up in a low priority class that we know has drops occasionally. As a results I get false positives on devices being down. I've used Windows group policy in the past to mark UDP or TCP traffic (using it for SNMP with NPM right now). But it doesn't touch ICMP packets. Anyone know of a way within Windows or NPM itself to self-mark DSCP values of other than 0 on ICMP?