IPv6 Progress and Challenges in CHT
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Chunghwa Telecom is Taiwan's largest telecommunications company, providing broadband, mobile, and other services to over 15 million subscribers. They have been actively deploying IPv6 since 2008 and currently have IPv6 enabled networks, international peering, and dual-stack FTTx and mobile services. However, they still face challenges with full IPv6 support in customer equipment, replacing legacy home gateways, firewall configuration, and ensuring new mobile devices support IPv6 by default. Chunghwa Telecom is committed to continued IPv6 deployment as part of their 4G LTE and public WiFi network expansion plans.
IPv6 Progress and Challenges in CHT
- 2. 2/15 Chunghwa Telecom Profile IPv6 Measurements in Taiwan IPv6 Progress and Challenges of Chunghwa Telecom Summary
- 3. 3/15 Subscribers in Major Services Broadband Service(FTTx/xDSL) 4,470,051 Mobile Service(3G/4G) 10,629,491 Employees: 22,252 (August. 2017) Capital : NT$ 77,574,465,450 Mobile Subscriber Market ShareBroadband Subscriber Market Share Chunghwa Telecom
- 4. 4/15 ISO-3166 Code Population Enabled Network IPv6 Use ratio Taiwan IPv6 Ranking Country TW 23,405,308 37.88% 0.51% 63 th Taiwan Source:Google IPv6 Adoption Source:AKAMAI Source: World IPv6 Launch
- 5. 5/15 2008 2010 2011 2012 2013 2014 2017 2018 HiNet IDC Center Support IPv6 HiNet Obtainedd IPv6 Enabled SP Logo CHT participated in World IPv6 Day CHTTL IPv6 Testing Lab participated the government’s “Next Generation Internet Interoperability Certification Program” (2009-2012) HiNet Launched FTTx/Dual Stack IPv6 Trial Service CHT supports government IPv6 GSN network Project CHT Participated in World IPv6 Launch PWLAN and LTE IPv6 trial run HiNet online E- service provide IPv6 application CHT released the IPv6 White Paper HiNet, ISP of CHT (Chunghwa Telecom, NYSE:CHT) 4G LTE plans to commercial service
- 6. 6/15 HiNet Backbone(Dual Stack) Internet ISP 1 ISP N Domestic Peering (Dual Stack) International Peering (Dual Stack) FTTx Network (Dual Stack) HiChannel video HiNet Mail HiNet e- Advertisement HiNet e-Mall Dual Stack Services IDC Data Center (Dual Stack) TWIX (Dual Stack) LTE Mobile Network (Dual Stack)
- 7. 7/15 Network status Backbone and access network is IPv6 capable International Networking AT&T, Verizon, Sprint, TeliaSonera, HE, NTT, FT,KDDI, PCCW, SingTel, StarHub, Google, Facebook…,etc. Domestic and TWIX interconnection GSN, TANET, TWAREN, TWGATE…,etc.
- 8. 8/15 IPv6 Native Access Service For leased line users IPv6 Configured Tunnel Service For HiNet IPv4 users with fixed IP address Tunnel Broker Service For all HiNet IPv4 users FTTx IPv6/IPv4 Dual Stack Service For HiNet FTTx users • Residential and business types Provide 4 cities default service in Taiwan HiNet is the first ISP to provide IPv6/IPv4 FTTx service in Taiwan
- 9. 9/15 CHT-TL (Chunghwa Telecom Laboratories, the R&D lab under Chunghwa Telecom) Established in 2003, the IPv6 Ready Logo Accredited Lab in Taiwan Test Capabilities Include:IPv6 Core、IPSec、DHCPv6、SNMPv2C and CE Router
- 10. 10/15 HiNet Routing differs between IPv4 and IPv6 Dual Stack User (IPv6 first) IPv6 Path Dual Stack or IPv4 Web server Improve the user experience as the transition to IPv6 continues Server IPv4 Path Internet DS Faster IPv4 Faster Alex Top 100 Website Measurement
- 11. 11/15 Not all CPE Support IPv6 (Customer-owned) Replacing or upgrading the HGW is a challenge, in particular for large networks Carrier IPv4 and IPv6 Network Layer 2 Access VLANIPv4 and / or IPv6 devices IPv4/IPv6 Edge Router (B-RAS) CPE Server Issue 1 End user CPE does not support IPv6 over PPPoE Issue 2 The Replacing or upgrading the IPv6 ready HGW (Support WiFi, PPPoE., etc ) HGW Home AP Planning early allows aligning the deployment of IPv6 with regular refresh cycles Any new equipment purchased is IPv6-compatible
- 12. 12/15 Forwarding IPv6 Packets with the Hop-by-Hop Extension Header Some antivirus firewall will block all incoming and outgoing IPv6 traffic
- 13. 13/15 IPv6 unsolicited traffic S1-MME S11 S1-U SGi PDN / IP Services NodeB/BTS eNodeB S-GW P-GW S-GW ISP Services IPv4 IPv6 DDos, Scan TCP/UDP /ICMP Evaluate the firewall security policies on the border LTE IPv6 does not have NAT or FW blocking external networks Cyber security risk
- 14. 14/15 Not all Vendors provide default IPv4/IPv6 DS APN setting Users are not familiar with the operation, may produce customer service problems New phone in 2018 initiate IPv4/IPv6 APN by default(suggestion) Upgrade IPv6 through OTA for old cell phone
- 15. 15/15 IPv6 deployment comes with its own challenges CPE IPv6 support, IPv6 path diversity, configuration and security issues, etc. Becoming IPv6-ready is a key part of CHT plans for wider 4G LTE and PWLAN network deployment CPE and UE are critical roles for IPv6 deployment
- 16. 16/15 16 Thank you! Value Creator for Investors, Customers, Employees, and Society