Quick Reference Guide

376 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring extended named ACLs
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mask (where zeros instead of ones are the significant bits) and changes the non-significant portion
of the IP address into zeros. For example, if you specify 209.157.22.26/24 or 209.157.22.26
0.0.0.255, then save the changes to the startup-config file, the value appears as 209.157.22.0/24
(if you have enabled display of subnet lengths) or 209.157.22.0 0.0.0.255 in the startup-config file.
If you enable the software to display IP subnet masks in CIDR format, the mask is saved in the file
in “/<mask-bits>” format. To enable the software to display the CIDR masks, enter the ip
show-subnet-length command at the global CONFIG level of the CLI. You can use the CIDR format
to configure the ACL entry regardless of whether the software is configured to display the masks in
CIDR format.
NOTE
If you use the CIDR format, the ACL entries appear in this format in the running-config and
startup-config files, but are shown with subnet mask in the display produced by the show ip
access-list command.
The <destination-ip> | <hostname> parameter specifies the destination IP host for the policy. If
you want the policy to match on all destination addresses, enter any.
The <icmp-type> | <icmp-num> parameter specifies the ICMP protocol type:
• This parameter applies only if you specified icmp as the <ip-protocol> value.
• If you use this parameter, the ACL entry is sent to the CPU for processing.
• If you do not specify a message type, the ACL applies to all types of ICMP messages.
The <icmp-num> parameter can be a value from 0 – 255.
The <icmp-type> parameter can have one of the following values, depending on the software
version the device is running:
• any-icmp-type
• echo
• echo-reply
• information-request
• log
• mask-reply
• mask-request
• parameter-problem
• redirect
• source-quench
• time-exceeded
• timestamp-reply
• timestamp-request
• traffic policy
• unreachable
• <num>
The <tcp/udp comparison operator> parameter specifies a comparison operator for the TCP or
UDP port number. This parameter applies only when you specify tcp or udp as the IP protocol. For
example, if you are configuring an entry for HTTP, specify tcp eq http. You can enter one of the
following operators: