Deny Icmp (For Extended Ipv6 Acls) - Dell C9000 Series Reference Manual

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).

deny icmp (for Extended IPv6 ACLs)

Configure a filter to drop all or specific ICMP messages.
C9000 Series
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:
Parameters
log
threshold-in msgs
count
interval minutes
monitor
• 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
(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
IPv6 Access Control Lists (IPv6 ACLs) 1246