Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Network Address Translation Kittiphan Techakittiroj

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Presentation transcript:

Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Network Address Translation Kittiphan Techakittiroj

Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Network Address Translation Design to solve the limitation of IPv4 addresses Translate all addresses inside the network to a certain IP Outside will not be able to reach inside network

Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Characteristics of NAT Outgoing Packets will be correct the information on the header before going out –single IP or multiple IP –at the router or on the network Incoming Packets need to be –Proxy Server –Route on specific port NAT: Network Address Translation

Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Limitation of NAT Some Protocol that embedded IP, UDP or TCP information inside the data area might not work properly –FTP –H.323 Implement Individual User NAT: Network Address Translation

Kittiphan Techakittiroj (25/06/59 19:10 น. 25/06/59 19:10 น. 25/06/59 19:10 น.) Reference Books Internet Firewall Tutorial: A White Paper (RPAnetwork: July 2002)