Several years ago, NetFlow was arguably one of the most underutilized management assets relevant to network performance and security. It was generally available as a part of Cisco IOS software ...

Not all Cisco products support NetFlow. Specifically, the widely-used Catalyst 3560/3750 switches and below don’t support it.

While there are no workarounds to fix the vulnerability, Cisco is urging users to apply an update that fixes the bug, Cisco NetFlow Generation Appliance Software release 1.1 (1a).

The first of the series, titled Cisco Performance Monitoring with Flexible NetFlow (FNF) Reporting, will be held on Tuesday, September 4th, at 9am, 11am and 4pm EDT.

Netflow is more for details on what the bytes/packets were used for. You probably can monitor vpn tunnel status with PRTG if they have a probe for that, or just an ICMP ping probe to reach the far ...

Cisco has disclosed four critical security flaws affecting router equipment that uses its IOS XE and IOS software. The four critical flaws are part of Cisco's June 3 semi-annual advisory bundle ...

Cisco has addressed the two vulnerabilities (CVE-2023-20198 and CVE-2023-20273) that hackers exploited to compromise tens of thousands of IOS XE devices over the past week.