You have configured NAT on your network so that Host A can communicate with Server B. You want to ensure that Host C can initiate communication with Host A using Host A’s reflexive address.
Referring to the exhibit, which parameter should you configure on the SRX Series device to satisfy this requirement?
A. Configure persistent NAT with the target-host parameter.
B. Configure persistent NAT with the target-host-port parameter.
C. Configure persistent NAT with the any-remote-host parameter.
D. Configure persistent NAT with the port-overloading parameter.
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Yes, the answer is definitely C
I believe the answer here should be C. See below from Juniper website https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/security-edit-permit-persistent-nat.html
any-remote-host—All requests from a specific internal IP address and port are mapped to the same reflexive transport address. (The reflexive transport address is the public IP address and port created by the NAT device closest to the STUN server.) Any external host can send a packet to the internal host by sending the packet to the reflexive transport address.
target-host—All requests from a specific internal IP address and port are mapped to the same reflexive transport address. An external host can send a packet to an internal host by sending the packet to the reflexive transport address. The internal host must have previously sent a packet to the external host’s IP address.