![]() Define an Access Control List (ACL) within config mode and apply the filter to the buffer: A filter is applicable to limit the capture to desired traffic.Monitor capture buffer BUF size 2048 max-size 1518 linear There are various options that can be selected when the buffer is defined such as size, maxium packet size, and circular/linear:.Define a 'capture buffer', which is a temporary buffer where the captured packets are stored.Cisco IOS Configuration Example Basic EPC Configuration The Packet Capture Config Generator and Analyzer tool is available for Cisco Customers to aid in the configuration, capture, and extraction of packet captures. In addition, the data can be exported as a packet capture (PCAP) file to allow for further examination. The tool is configured in exec mode and is considered a temporary assistance tool. As a result, the tool configuration is not stored within the router configuration and does not remain in place after a system reload. When enabled, the router captures the sent and received packets. The packets are stored within a buffer in DRAM and do not persist through a reload. Once the data is captured, it can be examined in a summary or detailed view on the router. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. Cisco IOS XE Release 15.2(4)S - 3.7.0 or later.The information in this document is based on these software and hardware versions: There are no specific requirements for this document. This document describes the Embedded Packet Capture (EPC) feature in Cisco IOS ® software.
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