This KB article was written for Nagios Network Analyzer 2.2.3. This allows you to create a dedicated source(s) for IPv6 without interfering with existing sources that use IPv4. This KB article shows you how to configure the backend scripts that run the nfcapd program to enable IPv6 support for a specific network port. The program does have an option to enable it to listen for traffic on interfaces with an IPv6 address, however when this option is enabled it will no longer listen on IPv4 addresses. This program by default listens only for traffic on interfaces with an IPv4 address. Nagios Network Analyzer runs instances of the nfcapd program for each source to listen for netflow traffic. This KB article provides the technical steps necessary to enable a Source in Nagios Network Analyzer to receive netflow traffic on IPv6 addresses.
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