In which situation is NAT proxy NDP required?
A.
when translated addresses belong to the same subnet as the ingress interface
B.
when filter-based forwarding and static NAT are used on the same interface
C.
when working with static NAT scenarios
D.
when the security device operates in transparent mode
Explanation:
WhenIP addressesarein the same subnet of the ingressinterface,NAT proxy ARPconfigured
Reference :http://www.juniper.net/techpubs/en_US/junos12.1×44/information-products/pathwaypages/security/security-nat.pdf
Reference :http://www.juniper.net/techpubs/en_US/junos-space12.2/topics/concept/junos-spacesecurity-designer-whiteboard-nat-overview.html