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NAT Box-to-Box High Availability on Asymmetric-Routing Question

dane.davis1
Level 1
Level 1

I see this topology below is possible:

 

Capture.PNG

 

 

Notice the Asymmetric Routing interface in use.

The two WAN-facing interfaces are both independent, and do not share a common virtual IP address

The two LAN facing interfaces share a common virtual IP address. 

 

My question: Is it possible to modify this design, for the LAN facing interfaces to both be independent, without requiring a virtual IP address shared between them? Will this break the NAT HA design?

 

This is the design I need to am hoping to accomplish:

 

Capture.PNG

Notice the is LAN A and LAN B (no virtual IP on the LAN side) 

 

Information source:

https://content.cisco.com/chapter.sjs?uri=/searchable/chapter/content/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/15-mt/nat-15-mt-book/iadnat-b2b-ha.html.xml

 

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