Deny Icmp (For Extended Ipv6 Acls) - Dell S4810 Reference Manual

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).

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:
•
•
Parameters
log
threshold-in
msgs count
interval
minutes
monitor
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 5 minutes. By default,
flow-based monitoring is not enabled.
342
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 which you are creating the rule is applied to the monitored
interface.
Access Control Lists (ACL)