Deny Icmp - Dell Z9500 Reference Manual

Version
6.5.1.0
Usage
Use the order option only when you use policy-based QoS on the switch. For
Information
more information, refer to the Quality of Service chapter of the Z9500
Configuration Guide.
When you use the log option, the CP processor logs detail 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.
Use the monitor option only when you are using flow-based monitoring. For
more information, refer to the Port Monitoring chapter of the Z9500 Configuration
Guide.
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 five minutes. By default,
flow-based monitoring is not enabled.
Related
deny tcp
Commands
deny udp
ip access-list extended

deny icmp

To drop all or specific internet control message protocol (ICMP) messages, configure a filter.
Z9500
Syntax
deny icmp {source–ip—address mask | any | host ip-address}
{destination mask | any | host ip-address} [log] [dscp] [[count
[bytes]] [order] [monitor] [fragments]
To remove this filter, you have two choices:
•
•
Parameters
source-ip-
address
mask
224
Description
Expanded to include the optional QoS order priority for the
ACL entry.
— assigns a filter to deny TCP packets.
— assigns a filter to deny UDP packets.
— creates an extended ACL.
Use the no seq sequence-number command if you know the filter's
sequence number.
Use the no deny icmp {source–ip—address mask | any | host ip-
address} {destination mask | any | host ip-address} command.
Enter the IP address of the network or host from which the
packets were sent.
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.
Access Control Lists (ACL)