Verify Drop Counters - When traffic does not pass properly, Cisco IOS-XE logs a drop counter for any dropped packets.This connection tracks the traffic and state information between a client and server. Verify Connection State - If traffic passes properly, the Cisco IOS-XE opens up a connection on the ZBFW feature.
Verify Configuration - Gather the configuration and examine the output in order to verify the connection.Specific to firewall features, the datapath troubleshooting follows these steps: In order to troubleshoot the datapath, you must identify whether traffic is properly passed through the ASR and Cisco IOS-XE code. Cisco ASR 1000 Series Aggregation Services Routers Command References.Traditional Cisco IOS commands used to poll current sessions and drop counters via Zone-Based Firewall (ZBFW) are no longer valid as the drops are no longer in software. The drawback to this is that it presents a greater challenge to troubleshoot. This allows for higher throughput and better performance. The software configuration of Cisco IOS-XE ® programs the hardware ASICs (quantum flow processor (QFP) in order to perform feature forwarding functionalities.
The ASR1000 is a hardware-based forwarding platform.
#FIREWALL BUILDER CLASSIFY ACTION MISSING HOW TO#
This document describes how to best troubleshoot the Zone Based Firewall (ZBFW) feature on the Aggregation Services Router (ASR) 1000, with commands that are used to poll the hardware drop counters on the ASR.
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