This regex matches fine in the NAS but in SDP message filter it does not.
MSN: (vmware) The CPU for msnesx.msncomm2.com.Resources.CPUOverallUsage on172.31.2.48:443 is outside expected limits (3137 > 3000)
/.*172.31.2.48*./
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you should try and change the end of your regex to ".*" (dot star) not "*." (star dot). The "." in regex means match one char and normally not a new line. Also, you should escape the periods between the octets of IP because your want to say match the period not a single char between 172 and 31.
try: /.*172\.31\.2\.48.*/