Sniffer Adaptive Application Analyzer: Adaptive Mode ... - NetScout

EARLY FIELD TRIAL
Subnet Masks
To define protocols:
Expert Analysis
1 Select Tools > Options from the Quick Select window and the
Options window appears.
2 Enter a protocol name and port(s) in the appropriate tab.
3 Click OK.
TCP/IP subnet masks traditionally reserve specific bits within an IP
network address for the subnet mask depending on the class of address.
The Expert comes with default subnet mask settings.
Class A - 255.0.0.0
Class B - 255.255.0.0
Class C - 255.255.255.0
Certain networks may use nontraditional subnet masks. If the Expert is
attached to a network segment that uses nontraditional subnet masks,
it may register spurious network objects and diagnoses. This happens
because the Expert expects address information at a location within the
address field other than where it actually is.
If your networks use nontraditional subnet masks, you must add the IP
network address and appropriate subnet mask for the networks from
which the Expert will see frames.
User’s Guide 233