Started with IOS 12.4(20)T version, EPC or Embedded Packet Capture, is a powerful feature to capture data packets flowing through, to, and from, a Cisco router. In contrast with SPAN feature, EPC permits to save the dump directly on the NVRAM and for this reason, Embedded Packet Capture is useful whenever a network protocol analyzer might be useful in debugging a problem, but when it’s not practical to install such a device. The features are: The ability to capture IPv4 and IPv6 packets in the Cisco Express Forwarding path A flexible method for specifying the capture buffer size and type [...]

The Cisco Product Security Incident Response Team (PSIRT) has published five important vulnerability advisories: Cisco Content Delivery System Internet Streamer: Web Server Vulnerability Cisco RVS4000 and WRVS4400N Web Management Interface Vulnerabilities Cisco IOS XR Software IP Packet Vulnerability Cisco XR 12000 Series Shared Port Adapters Interface Processor Vulnerability Cisco IOS XR Software SSHv1 Denial of Service Vulnerability