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sponsored by Global Knowledge
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Posted:
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27 Aug 2009
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Published:
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27 Aug 2009
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Format:
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HTML
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Length:
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19
Page(s)
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Type:
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White Paper
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Language:
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English
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ABSTRACT:
In this white paper, we'll take a look at access control lists, often referred to as access lists or ACLs (sometimes pronounced "ackels"). In Cisco IOS, ACLs are used for many things, including but not limited to:
Filtering data packets (firewalling)
Controlling Telnet or SSH access to a router or switch
Filtering routing protocols
Specifying Quality of Service (QoS)
Controlling encryption
Controlling NAT (Network Address Translation)
Controlling Dial-on-Demand
The idea of an access list is straightforward: it permits some things, and denies others. What exactly is being “permitted” or “denied” varies according to the application of the ACL. Although access lists for other protocols (such as IPX, AppleTalk, MAC addresses, etc.) exist, we'll be focusing on IP access lists. In general, only routers
and multi-layer switches understand IP access lists.
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BROWSE RELATED
RESOURCES
Access Control | Access Control Software | IP Address Management | IP Networks | IP Routers | Network Address Translation | Network Management | Network Managers | Routers
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View All Resources
sponsored by Global Knowledge
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