Sniffer® Portable Professional User's Guide - NetScout

Configuring Autodiscovery for Routers
Using the Address Book
A router carries traffic between other subnets and the local segment
where your Sniffer Portable Professional resides, therefore, the router’s
hardware address will be associated with any IP address that passes
through it. This appears as a duplicate IP address to the autodiscovery
process. When autodiscovery finds duplicate IP addresses, it adds an
entry into the Alarm log and sounds an audible alarm. To prevent these
false duplicate IP address alarms, you must manually enter your IP
network router’s IP address, hardware address, and domain name in the
address book first, and specify the Type as Router.
Adding Discovered Addresses to the Address Book
During capture, the Expert analyzer automatically discovers name and
address pairs on the network. You can add these discovered addresses
to the analyzer’s Address Book using the Discovered Addresses dialog
box.
To add name and address pairs discovered by the Expert:
1 After a capture, display the Expert tab of the display window.
2 Click Discovered Addresses in the Expert tab of the display
window. The Discovered Addresses dialog box appears (Figure
11-4). It lists the new name and address pairs that have been
discovered during the capture session. Only name and address
pairs not already in the address book are listed.
Figure 11-4. The Discovered Addresses Dialog Box
3 Select the addresses in the list that you would like to add to the
Address Book. You can use the standard Shift-Click and Ctrl-Click
methods to select multiple entries. You can also use Select All and
Select None to speed the selection process.
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