Abstract
The use of CGNAT at PT. ZYX as a mobile telecommunication service provider cannot be relied as the solution to solve addressing needs against subscriber growth in future technology. Meanwhile, native IPv6 deployment is currently application-driven, which requires maturity support in either subscriber user equipment, network, and application itself. IPv4/IPv6 dual stack deployment was selected by PT. ZYX as stepping stone towards native IPv6 deployment. This paper analyzes the impact of dual stack IPv4/IPv6 deployment for mobile subscribers at PT. ZYX. After selecting the dual stack approach and completing the deployment, test and measurements were performed to confirm the connectivity also against the performance and node utilization to conclude the impact. The test confirmed successful connectivity and the measurements showed that the deployment gives significant enhancement of routing table size and NAT table in node utilization and does not cause performance drop of hop count, throughput, and download time.
Highlights
At 14 September 2012, Réseaux IP Européens Network Coordination Centre (RIPE NCC) as Regional Internet Registry (RIR) for Europe, Middle East and Central Asia began to allocate IPv4 address space from the last /8 of IPv4 address space it holds [1].In order to cater subscriber growth with public Internet Protocol version 4 (IPv4) limitation, addressing solution for their subscribers was mandatory for PT
We showed that a HE timer value of 150 milliseconds provides a margin benefit of 10% while retaining similar Internet Protocol version 6 (IPv6) preference levels for 99% of the dual-stacked websites [10]
IPv6 Hypertext Transfer Protocol (HTTP) connectivity was successfully established between dual stack subscriber User Equipment (UE) and sample HTTP website http://ripe.net
Summary
In order to cater subscriber growth with public Internet Protocol version 4 (IPv4) limitation, addressing solution for their subscribers was mandatory for PT. ZYX must choose whether to go with single IPv6, dual stack, or to stay with current Carrier Grade Network Address Translation (CGNAT) solution. Single Internet Protocol version 6 (IPv6) means assigning single IPv6 address to subscribers’ user equipment. This approach requires translation [2] for IPv6 to IPv4 communication or tunneling [2] for IPv6 traversing IPv4 domain in its intermediate path. Staying with CGNAT solution means translating IPv4 to other IPv4 to save the use of existing limited public IPv4
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