Exam 350-801 topic 1 question 482 discussion

CUBE has a specific feature that helps mitigate toll-fraud behavior. The out-of-the-box behavior is that CUBE will not accept call requests from any remote IP peer unless that peer has been explicitly defined in the system. When a session target is defined in a dial peer, CUBE automatically adds to its trust list the IP address from the session target as an approved device for accepting call requests. Administrators can then add additional SIP source addresses to allow for SIP calls that may not be defined in a session target, such as IP addresses associated with SRV (DNS service) records or inbound sources for which there are no outbound dial peers configured for receiving outbound calls. Any incoming call requests from sources that aren’t defined using these two approaches will then be rejected with cause value 21. In order of these information, correct answer is D.

Correct is D A - no 192.168.101.201 is not within ip address trusted list network 192.168.101.0 255.255.255.128 includes IPs 192.168.101.1 -192.168.101.127 B no 192.168.100.102 is not included in trusted list and not configured in dial-peer C no 192.168.100.103 is not included in trusted list and not configured in dial-peer D OK 192.168.102.102 is configured on dial-peer. Anything configured ion dial-peer is trusted by design.