34.229-43GPPInternet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP)Part 4: Enabler for IP multimedia applications testingRelease 11TSUser Equipment (UE) conformance specification
The DHCP port is used for receiving the DHCP requests from the UE under test, and sending corresponding responses to the UE. The DNS port is used for receiving domain name resolution requests from the UE and sending the results back to the UE. The TTCN which implements the required DHCP and DNS server functions (only the functions necessary for testing purposes, not full functionality) will receive and send on these ports.
The DHCP and DNS server functionalities in the default test configuration are implemented as Parallel Test Components (PTCs).