You cannot include IP, TCP, or UDP filters in an ACL configured with ARP filters.
permit icmp
Configure a filter to allow all or specific ICMP messages.
E-Series
Syntax
permit icmp {source mask | any | host ip-address} {destination
mask | any | host ip-address} [dscp] [message-type] [count
[byte] | log] [order] [monitor] [fragments]
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 permit 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
noncontiguous.
any Enter the keyword any to match and drop specific Ethernet traffic on
the interface.
host
ip-address
Enter the keyword host and then enter the IP address to specify a
host IP address.
destination
Enter the IP address of the network or host to which the packets are
sent.
dscp Enter the keyword dscp to deny a packet based on the DSCP value.
The range is 0 to 63.
message-type
(OPTIONAL) Enter an ICMP message type, either with the type (and
code, if necessary) numbers or with the name of the message type.
The range is 0 to 255 for ICMP type and 0 to 255 for ICMP code.
count (OPTIONAL) Enter the keyword count to count packets the filter
processes.
byte (OPTIONAL) Enter the keyword byte to count bytes the filter
processes.
log (OPTIONAL, E-Series only) Enter the keyword log to have the
information kept in an ACL log file.
order (OPTIONAL) Enter the keyword order to specify the QoS priority for
the ACL entry. The range is 0 to 254 (where 0 is the highest priority
and 254 is the lowest; lower-order numbers have a higher priority). If
you do not use the keyword
order, the ACLs have the lowest order
by default (255).
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