Egress PE NAT is being used via a single centralized router to provide Internet access to L3VPN customers. Which description of the NAT operation is true?
A.
The NAT table contains a field to identify the inside VRF of a translation.
B.
Multiple address pools are needed for the same L3VPN because each site has a separate NAT.
C.
The different L3VPNs using the Internet access must not have IP overlaps internally.
D.
Users in different VRFs cannot share the same outside global IP address.
https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/112084-ios-nat-mpls-vpn-00.html
In order for devices in multiple VPNs that have overlapping address schemes to access a shared service host, NAT is required. When NAT is configured at the egress PE, [the network address translation table entries will include a VRF identifier to differentiate duplicate addresses] and ensure proper routing.
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