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NAT on IOS-XE

The NAT configuration guide ( https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/xe-16/nat-xe-16-book.pdf) mentions the following as one of the restrictions (on page 25)

 

> NAT outside interface is not supported on a VRF. However, NAT outside interface is supported in iWAN and is part of the Cisco Validated Design

 

Can someone kindly explain what does this statement exactly mean?

 

Is the following configuration not supported, if my inside interface is in global and the outside interface is in a vrf? In lab simulations, it works ok.

 

LAN DEVICES ------- (LAN interface- Gi0/0/1;Global) ROUTER (WAN interfacae Gi0/0/0; INET vrf) --- ISP

 

interface GigabitEthernet 0/0/1

ip nat inside

 

interface GigabitEthernet 0/0/0

ip vrf forwarding INET

ip nat outside

 

 

 

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