- to communicate with a non-LISP site
- to send map request packets to the MR on behalf of an ETR
- to perform a DNS lookup for any EID within an LISP site
- to register any EID addresses that are not within the mapping database
Explanation: A proxy egress tunnel router (PETR) is a router that connects to a non-LISP site such as to the Internet or a data center when a LISP site needs to communicate to a non-LISP site.
More Questions: CCNPv8 ENCOR (Version 8.0) – IP Services and VPNs Exam