Deny (For Extended Ip Acls) - Dell S6100 Configuration Manual

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Version
9.8(0.0P5)
9.8(0.0P2)
9.7(0.0)
9.3(0.0)
9.4(0.0)
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 the flow-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 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).
Related Commands

deny (for Extended IP ACLs)

Configure a filter that drops IP packets meeting the filter criteria.
Syntax
deny {ip | ip-protocol-number} {source mask | any | host ip-address}
{destination mask | any | host ip-address} [count [byte]] [dscp value] [order]
[monitor] [fragments] [log [interval minutes] [threshold-in-msgs [count]]
[monitor]
To remove this filter, you have two choices:
Parameters
log
threshold-in msgs
count
288
Access Control Lists (ACL)
Description
Introduced on the S4048-ON.
Introduced on the S3048-ON.
Introduced on the S6000–ON.
Added support for logging of ACLs on the S4810, S4820T, and Z9000 platforms.
Added support for flow-based monitoring on the S4810, S4820T, S6000, and Z9000
platforms.
ip access-list standard
— configure a standard ACL.
permit
— configure a permit filter.
Use the no seq sequence-number command if you know the filter's sequence number.
Use the no deny {ip | ip-protocol-number} {source mask | any | host ip-address}
{destination mask | any | host ip-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

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