Dell S3100 Command Line Reference Guide for the Series 9.112.1 - Page 328
deny icmp (for Extended IPv6 ACLs
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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). deny icmp (for Extended IPv6 ACLs) Configure a filter to drop all or specific ICMP messages. NOTE: Only the options that have been newly introduced in Release 9.3(0.0) and Release 9.4(0.0) are described here. For a complete description on all of the keywords and variables that are available with this command, refer the topic of this command discussed earlier in this guide. Syntax deny 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 syntax if you know the filter's sequence number • Use the no deny icmp {source address mask | any | host ipv6-address} {destination address | any | host ipv6-address} command Parameters Defaults source address mask any host ip-v6address destination log threshold-in msgs count interval minutes monitor Enter a network mask in /prefix format (/x) or A.B.C.D. The mask, when specified in A.B.C.D format, may be either contiguous or non-contiguous. Enter the keyword any to specify that all routes are subject to the filter. Enter the keyword host then the IPv6 address to specify a host IP address. Enter the IP address of the network or host to which the packets are sent. (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. You can enter a threshold in the range of 1-100. (OPTIONAL) Enter the keyword interval followed by the time period in minutes at which ACL logs must be generated. You can enter an interval in the range of 1-10 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 5 minutes. By default, flow-based monitoring is not enabled. Command Modes Command History ACCESS-LIST This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. 328 Access Control Lists (ACL)
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1,806
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