3com 5500-ei pwr Instruccion De Instalación

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1-8 
number of the rule will be the greatest rule number plus one. If the current greatest rule 
number is 65534, however, the system will display an error message and you need to 
specify a number for the rule.  
The content of a modified or created rule cannot be identical with the content of any 
existing rules; otherwise the rule modification or creation will fail, and the system 
prompts that the rule already exists.  
If the ACL is created with the auto keyword specified, the newly created rules will be 
inserted in the existent ones by depth-first principle, but the numbers of the existent 
rules are unaltered.  
Configuration example 
# Configure ACL 3000 to permit the TCP packets sourced from the network 129.9.0.0/16 
and destined for the network 202.38.160.0/24 and with the destination port number being 
80. 
<Sysname> system-view 
[Sysname] acl number 3000 
[Sysname-acl-adv-3000] rule permit tcp source 129.9.0.0 0.0.255.255 destinatio n  
202.38.160.0 0.0.0.255 destination-port eq 80 
# Display the configuration information of ACL 3000. 
[Sysname-acl-adv-3000] display acl 3000 
Advanced ACL  3000, 1 rule 
Acl's step is 1 
  rule 0 permit tcp source 129.9.0.0 0.0.255.255 destination 202.38.160.0 0.0.0.255 
destination-port eq  www 
Configuring Layer 2 ACL 
Layer 2 ACLs filter packets according to their Layer 2 information, such as the source and 
destination MAC addresses, VLAN priority, and Layer 2 protocol types. 
A Layer 2 ACL can be numbered from 4000 to 4999.  
Configuration prerequisites 
To configure a time range-based Layer 2 ACL rule, you need to create the 
corresponding time ranges first. For information about time range configuration, refer 
to 
The settings to be specified in the rule, such as source and destination MAC addresses, 
VLAN priorities, and Layer 2 protocol types, are determined. 
Configuration procedure 
Follow these steps to define a Layer 2 ACL rule: 
To do... 
Use the command... 
Remarks  
Enter system view  
system-view 
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