ACLUnderstand the structure of standard ACLs.Know where/when standard ACL are used.Understand what...

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ACLUnderstand the structure of standard ACLs.Know where/when standard ACL are used.Understand what standard ACLs are designed to permit and deny.Troubleshoot ACLs

David · Accepted Answer

Answer 1. 
Structure of standard ACLs: 
IP addresses use the Masks in Internet protocol ACLs which specify the filter to 
permit and denied. There is reverse configuration for Masks for IP ACLs. Like mask would 
be 0.0.0.2555. After that value of the mask is portioned in binary bits i.e. 0s and 1s.  Which 
result specifies that which address should be considered in processing the traffic? Where 0 
states that address bits should be measured exact match and 1 determine in the mask for no 
care. Illustration is given below: 
Network Address  10.1.1.0 
Mask 0.0.0.255 
Network address ( Binary) 00001010.00000001.00000001.00000000 
Mask(Binary) 00000000.00000000.00000000.11111111
 First 3 set must match the specified network address of binary accurately 
(00001010.

ACL Understand the structure of standard ACLs. Know where/when standard ACL are used. Understand what standard ACLs are designed to permit and deny. Troubleshoot ACLs

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