Dell S3100 Command Line Reference Guide for the Series 9.100.0 - Page 280

permit icmp (for IPv6 ACLs) To allow all or specific internet control message protocol (ICMP) messages, configure a filter. Syntax permit icmp {source address mask | any | host ipv6-address} {destination address | any | host ipv6-address} [message-type] [count [byte]] [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 address mask | any | host ipv6-address} {destination address | any | host ipv6-address} command. Parameters log (OPTIONAL) Enter the keyword log to enable the triggering of ACL log messages. threshold-in msgs count (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. interval minutes (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. monitor (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. Defaults 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 ACCESS-LIST Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version Description 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.5(0.1) 9.4(0.0) 9.3(0.0) 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. Introduced on the Z9500. Added support for flow-based monitoring on the S4810, S4820T, S6000, and Z9000 platforms. Added support for logging of ACLs on the S4810, S4820T, and Z9000 platforms. Usage Information When the configured maximum threshold is exceeded, generation of logs is stopped. When the interval at which ACL logs are configured to be recorded expires, the subsequent, fresh interval timer is started and the packet count for that new interval commences from zero. If ACL logging was stopped previously because the configured threshold is exceeded, it is re-enabled for this new interval. If ACL logging is stopped because the configured threshold is exceeded, it is re-enabled after the logging interval period elapses. ACL logging is supported for standard and extended IPv4 ACLs, IPv6 ACLs, and MAC ACLs. You can configure ACL logging only on ACLs that are applied to ingress interfaces; you cannot enable logging for ACLs that are associated with egress interfaces. You can activate flow-based monitoring for a monitoring session by entering theflow-based enable command in the Monitor Session mode. When you enable this capability, traffic with particular flows that are traversing through the ingress and egress interfaces are examined and, appropriate ACLs can be applied in both 280 Access Control Lists (ACL)