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SEC0006 - ASA 8.3 8.4 Object NAT

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The video looks at how to configure Object NAT on a Cisco ASA 8.3. We go through NAT configuration syntax for different type of NAT scenarios and examine some characteristics specific to Object NAT.

Object NAT is one of the two ways of configuring NAT on an ASA starting from version 8.3. The configuration is built around a command 'object network', with 'nat' statement being inside an object.
Topic includes
  • ASA Static NAT
  • ASA Static PAT
  • ASA Dynamic NAT
  • ASA Dynamic PAT/PAT Pool
  • ASA Destination NAT
  • ASA Identity NAT
  • Object NAT is placed in Section 2 of the NAT table
  • Object NAT allows separate matching for source and destination translation
  • Object NAT commands are reordered automatically by type and size of defined subnets
  • Object NAT does not support policy/conditional NAT where both source and destination are matched concurrently

VIRL Config File. Courtesy of Katherine McNamara

About Author

Metha Chiewanichakorn, CCIE#23585 (Ent. Infra, Sec, SP), is a Cisco networking enthusiast with years of experience in the industry. He is currently working as a consulting engineer for a Cisco partner. As a founder of and an instructor at, Metha enjoys learning and challenges himself with new technologies.