Configuring NAT (1)

Network Address Translation or NAT was created to represent a large number of private IP addresses for a limited quantity of public IPs; but it’s useful for network migrations and mergers (when two networks have similar IP addressing), server load sharing and to create “virtual hosts”.

Advanges:

1. To keep the registred addresses
2. it helps to solve IP overlaps
3. No need to renumber as the network changes

Disadvantage:

1. NAT increases delays
2. No End-toEnd traces
3. Some applications don’t support NAT

Below there’s a basic example from Cisco’s Document: Configuring Network Address Translation:Getting Started

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Photo

One of my hobbies is Photography, so I have a lot of images to share with you, the thumbnails next to these lines are some of my ‘interesant’ pictures according to Flickr, and next are some photos I like:

Cisco access-list ACL

If you need assitance configuring ACLs, there’s a technical reference from Cisco.com:http://www.cisco.com/en/US/tech/tk648/tk361/tk821/tsd_technology_support_sub-protocol_home.html

and it includes: