Users Guide
Version Description
8.2.1.0 Allows ACL control of fragmented packets for IP (Layer 3) ACLs.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
7.4.1.0 Added support for the non-contiguous mask and added the monitor option.
6.5.10 Expanded to include the optional QoS order priority for the ACL entry.
Usage Information
The order option is relevant in the context of the Policy QoS feature only. For more information, see the “Quality
of Service” section of the Dell Networking OS Conguration Guide.
The software cannot count both packets and bytes; when you enter the count byte options, only bytes are
incremented.
Related Commands
• ip access-list extended — create an extended ACL.
•
• permit tcp — assign a permit lter for TCP packets.
• permit udp — assign a permit lter for UDP packets.
permit icmp
Congure a lter to allow all or specic ICMP messages.
Syntax
permit icmp {source mask | any | host ip-address} {destination mask | any |
host ip-address} [type] [dscp] [message-type] [count [byte] | log] [order]
[monitor] [fragments] [no-drop]
To remove this lter, you have two choices:
• Use the no seq sequence-number command if you know the lter’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 /prex format (/x) or A.B.C.D. The mask, when specied in
A.B.C.D format, may be either contiguous or noncontiguous.
any Enter the keyword any to match and drop specic Ethernet trac 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.
type Enter the ICMP packet type. The following types are available:
For IPv4:
echo count
echo-reply count
host-unreachable count
host-unknown count
208 Access Control Lists (ACL)