CLI Guide

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).
The order option is relevant in the context of the Policy QoS feature only. For
more information, refer to the Quality of Service chapter of the Dell Networking OS
Configuration Guide.
The monitor option is relevant in the context of flow-based monitoring only. For
more information, refer to the
Port Monitoring.
When you use the log option, the CP processor logs details the packets that
match. Depending on how many packets match the log entry and at what rate, the
CP may become busy as it has to log these packets’ details.
You cannot include IP, TCP or UDP (Layer 3) filters in an ACL configured with ARP
or Ether-type (Layer 2) filters. Apply Layer 2 ACLs (ARP and Ether-type) to Layer 2
interfaces only.
NOTE: When ACL logging and byte counters are configured simultaneously,
byte counters may display an incorrect value. Configure packet counters with
logging instead.
deny icmp
To drop all or specific internet control message protocol (ICMP) messages, configure a filter.
Syntax
deny icmp {source mask | any | host ip-address} {destination
mask | any | host ip-address} [dscp] [count [byte]] [order]
[fragments][threshold-in-msgs] [count]]
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 deny icmp {source mask | any | host ip-address}
{destination mask | any | host ip-address} command.
Parameters
source Enter the IP address of the network or host from which the
packets were sent.
mask 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.
any Enter the keyword any to specify that all routes are subject
to the filter.
host ip-address Enter the keyword host then the IP address to specify a
host IP address.
Access Control Lists (ACL)
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