May 07, 2012

Dual-Stack Lite is a promising approach that takes the best of NAT464 while avoiding its problems: It uses IPv6-only links between the provider and the customer, but does not use NAT64 translation. SRX Series,vSRX. Understanding IPv6 Dual-Stack Lite, Example: Configuring IPv6 Dual-Stack Lite Dual-Stack Lite, also knows as DS-Lite, is mechanism which facilitates large scale IPv4 NAT by encapsulating IPv4 packets inside IPv6 packets for delivery to a Carrier-Grade NAT (CGN) endpoint. This allows providers to provision end users with only a routed IPv6 address, and any IPv4 traffic is carried through IPv6 to a CGN device. Dual Stack Lite (DS-Lite) is an IPv6 transition technology for ISPs with IPv6 infrastructure to connect their IPv4 subscribers to the Internet. It give the advantage to ISP’s to enable communication between two different stack protocols called IPv6 over IPv4. Dual-Stack Lite technology does not involve allocating an IPv4 address to customer-premises equipment (CPE) for providing Internet access. It is described in RFC 6333. The CPE distributes private IPv4 addresses for the LAN clients, according to the networking requirement in the local area network. ACX Series,M Series,T Series,MX Series,PTX Series,ACX Series. Service providers and enterprises are faced with growing their networks using IPv6, while continuing to serve IPv4 customers. • Dual stack (IPv4 and IPv6) from the distribution layer to the core layer Solution Components • Cisco ® Catalyst 6500, Catalyst 4500, and Catalyst 3750, 3560 and 2960 running Cisco IOS® Software Figure 1. Dual Stack Campus Cisco Solution for the Data Center All Layer 3 switches run dual stack: • Dual stack (IPv4 and IPv6) from the data

Same issue is also being faced by users in Ireland also have this DS-Lite or IPv6 connection - If connecting to a pure IPv4 connection (mobile phone hotspot) everything works fine. - Beside of Laptops, also iPads are affected if you connect via Junos Pulse (VPN setup works but connection to VDI as an example times out)

· Dual stack: A dual stack device is “bilingual;” that is, it can Carrier-Grade NAT (CGN), NAT444, NAT464, Dual-Stack Lite, IVI, A+P… The challenge is deciding which of the proposed To best serve our customers during this time, Verizon is rolling out IPv6 address space in a "dual stack" mode – where IPv4 and IPv6 addresses are both loaded. The company will maintain IPv4 for those servers continuing to use that standard, and IPv6 for servers using this latest standard.

To best serve our customers during this time, Verizon is rolling out IPv6 address space in a "dual stack" mode – where IPv4 and IPv6 addresses are both loaded. The company will maintain IPv4 for those servers continuing to use that standard, and IPv6 for servers using this latest standard.

Dual-Stack Lite is a promising approach that takes the best of NAT464 while avoiding its problems: It uses IPv6-only links between the provider and the customer, but does not use NAT64 translation.