A customer has two IP networks, IPN1 and IPN2, which both belong to IP exchange IPE1. They want port 1521 to be opened for some (but not all) servers in IPN1 to some (but not all) servers in IPN2.
All servers in IPN1 and IPN2 belong to IPN1-VNICSet and IPN2-VNICSet respectively and have many ACLs applied to them.
The customer created "ACL-1521" for this purpose, which is not attached to any VNICSets or security rules.
Egress from both IP networks is already open on all ports.
What action must they perform?
A. Remove any VMs that do not grant access to port 1521 on IPN2-VNICSet from IPN1, create a protocol rule and a security rule for ingress, attach it to ACL-1521, and then apply this ACL to IPN2-VNICSet.
B. Create an ingress with IPN1-VNICSet as source and IPN2-VNICSet as destination, attach it to ACL1521, and apply the ACL to IPN2-VNICSet.
C. Create a separate VNICSet for the identified servers: IPN1-1521 and IPN2-1521, create a protocol rule and an ingress security rule, attach it to ACL-1521, and apply it to IPN2-1521.
D. Create an ingress security rule for port 1521 and attach it to an existing ACL for IPN2.
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