Chapter 5
Operation
This Chapter explains how to use the PR-6606, once it is installed and configured.
Common Uses – Overview
The PR-6606 monitors all UDP packets passing through it. All packets received into any port of the
PR-6606 are bridged unchanged and transmitted out the other ports of the PR-6606. Any UDP packets
meeting user-defined selection criteria will be replicated and sent to one or more additional destinations.
The replicated packets will appear as if they were sent from the original source.
User defined selection criteria is configured in "rules". Each rule allows packets to be selected based upon
source IP address, destination IP address, and destination IP port number. IP address and port entries may be
a single value such as one IP address (192.168.2.2 for exapmle) or one port number (for example 3001) or a
range such as 192.168.1.2 to 192.168.1.230 or port 5001 through 8000. If no port number is entered, all
UDP packets meeting other selection criteria are duplicated. To insure the PR-6606 will replicate the
desired packets, the PR-6606 must be inserted in the network path between the original packet's source and
original packet's destination. Furthermore, to prevent MAC table corruption in any layer-2 switches, the
destination of a replicated packet must also reside on a different LAN port from the original source. To
summarize, the original source cannot be located on the same PR-6606 LAN port as the original destination
or replicated destination.
When the PR-6606 is replicating packets to a multicast or a broadcast address, the PR-6606 will not spoof
the sender's MAC address, but instead will replace the original sender's MAC address with the PR-6606's
MAC address, as is normal practice with multicast repeaters. This is to prevent MAC table corruption in
layer-2 switches. The packet will retain the original sender's IP address.
Typical Application Diagrams
A typical use would be to insert the PR-6606 in the ethernet path between a video camera streaming UDP
packets and multiple recipient devices. Most video camera streams are limited to the number of destination
devices they support. The PR-6606 allows more recipients for camera streams.
It may be inserted in the ethernet path between a PC and multiple electronic signs. The PC would be
streaming UDP packets containing data for electronic signs, and the PR-6606 would broadcast a single
UDP data stream to multiple devices on various subnets.
It may be used to broadcast netflow or SNMP datagram packets to multiple management workstations.
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