Dell S3100 Command Line Reference Guide for the Series 9.112.1 - Page 303
permit icmp (for Extended IP ACLs
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the ingress and egress direction. Flow-based monitoring conserves bandwidth by monitoring only specified traffic instead all traffic on the interface. This feature is particularly useful when looking for malicious traffic. It is available for Layer 2 and Layer 3 ingress and egress traffic. You may specify traffic using standard or extended access-lists. This mechanism copies all incoming or outgoing packets on one port and forwards (mirrors) them to another port. The source port is the monitored port (MD) and the destination port is the monitoring port (MG). permit icmp (for Extended IP ACLs) Configure a filter to allow all or specific ICMP messages. Syntax permit icmp {source mask | any | host ip-address} {destination mask | any | host ip-address} [dscp] [count [byte]] [order] [fragments] [log [interval minutes] [threshold-in-msgs [count]] [monitor] To remove this filter, you have two choices: • Use the no seq sequence-number command if you know the filter's sequence number. • Use the no permit icmp {source mask | any | host ip-address} {destination mask | any | host ip-address} command. Parameters Defaults log threshold-in msgs count interval minutes monitor (OPTIONAL) Enter the keyword log to enable the triggering of ACL log messages. (OPTIONAL) Enter the threshold-in-msgs keyword followed by a value to indicate the maximum number of ACL logs that can be generated, exceeding which the generation of ACL logs is terminated with the seq, permit, or deny commands. The threshold range is from 1 to 100. (OPTIONAL) Enter the keyword interval followed by the time period in minutes at which ACL logs must be generated. The interval range is from 1 to 10 minutes. (OPTIONAL) Enter the keyword monitor when the rule is describing the traffic that you want to monitor and the ACL in which you are creating the rule is applied to the monitored interface. By default, 10 ACL logs are generated if you do not specify the threshold explicitly. The default frequency at which ACL logs are generated is five minutes. By default, flow-based monitoring is not enabled. Command Modes Command History CONFIGURATION-STANDARD-ACCESS-LIST This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) Description Introduced on the S3148. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Access Control Lists (ACL) 303
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