What is the access list ?

[M_Ahmed]

Please describe accesslist

 

[alqasim]

Re: What Access list?

It is a sort of filtering for the traffic that passes through the port of the switch or the router.

In CISCO (I don't know anything about the remaining), there are three types of ACLs for the IP-based network:

1- Standard ACL.
2- Extended ACL.
3- Named ACL.

For Standard & extended ACL there is specific numeric ranges that can be used
For example, the range 1 – 2699 is divided as follow:
<1-99> IP standard access list
<100-199> IP extended access list
<200-299> Protocol type-code access list
<300-399> DECnet access list
<600-699> Appletalk access list
<700-799> 48-bit MAC address access list
<800-899> IPX standard access list
<900-999> IPX extended access list
<1000-1099> IPX SAP access list
<1100-1199> Extended 48-bit MAC address access list
<1200-1299> IPX summary address access list
<1300-1999> IP standard access list (expanded range)
<2000-2699> IP extended access list (expanded range)

AS you can see, it depends on the type of access control & the network protocol (IP, MAC DECnet, Appletalk , IPX). The numeric ranges are used for the Standard is <1-99> & <1300-1999>

Standard ACL uses the IP address on filtering (Layer 3).

Extended ACL uses the IP address, port no. (Layer 3 & 4).

In named ACL, you should mention inside the command line if it is extended or basic. Just It allows you to give an intuitive name instead of numbers allows

I hope these informations will help you.

 

[lindy]

Re: What Access list?

Here is more information on access list. You can get the attachment. It is a pdf file

 

[m_3aziz]

What Access list?

pretty good info.s
can any one know about other types like juniper?

 

[mehrdadf]

What Access list?

thanks alot for your post.
can any one help me to make an access list for users.

 

[JABEZ.S.DAVID]

Re: What Access list?

Access control is the ability to permit or deny the use of a particular resource by a particular entity. Access control mechanisms can be used in managing physical resources (such as a movie theater, to which only ticketholders should be admitted), logical resources (a bank account, with a limited number of people authorized to make a withdrawl), or digital resources (for example, a private text document on a computer, which only certain users should be able to read).

 

[alqasim]

Re: What Access list?

Hi everyone

m_3aziz , what do you mean by Juniper.

mehrdadf, what do you mean by

can any one help me to make an access list for users

.