IPv6
IPv6, or Internet Protocol Version 6, is the latest generation of the Internet protocol. It was developed to overcome the limitations of IPv4 and meet the growing demand for IP addresses. The transition to IPv6 is necessary because the number of available IPv4 addresses is nearing exhaustion due to the exponential increase in Internet-enabled devices and services.
Technical Characteristics
Larger Address Space
IPv6 uses 128-bit addresses compared to IPv4's 32-bit addresses, creating a theoretical possibility of 3.4 x 10^38 unique IP addresses. This is crucial to meet the demand for more addresses and ensures that every device worldwide can receive a unique address.
Through the hierarchical structuring of IPv6 addresses, routing tables are simplified and network performance is improved. This results in more efficient data transmission and enhances the scalability of the Internet.
Automatic Network Configuration
Another advantage of IPv6 is its ability to automatically configure network devices, allowing easy setup and management of networks. This can be done using Stateless Address Autoconfiguration (SLAAC) and DHCPv6.
The Centro Business supports native IPv6 with the following configurations:
SLAAC (Stateless Address Autoconfiguration)
SLAAC allows devices to automatically assign themselves an IPv6 address. This occurs by receiving Router Advertisement messages from the Centro Business router in the network. The process ensures that the address is unique and globally reachable.
DHCPv6
DHCPv6 (Dynamic Host Configuration Protocol for IPv6) enables central management of a network by providing specific configurations for IPv6 addressing and other network settings.
SLAAC & DHCPv6
The combination of SLAAC and DHCPv6 offers the advantages of both methods. Devices can obtain their base address via SLAAC, while additional network information such as DNS and domain information is provided through DHCPv6.
FAQ - IPv6
How can I determine whether my network supports IPv6?
You can check your devices and network settings to see whether IPv6 addresses are being used. Many operating systems support IPv6.
What are the main differences between IPv4 and IPv6?
IPv6 offers a larger address space, more efficient routing, integrated security via IPsec, and enhanced automatic configuration features, while IPv4 suffers from stricter limitations in address availability and security.
What is the main goal of IPv6?
The main goal of IPv6 is to solve the fundamental problem of IP address depletion and strengthen the Internet’s infrastructure for future growth. With its larger address space and modern features, IPv6 ensures the continuity and expandability of the Internet while enabling new technologies and applications.
How large is the assigned prefix?
Swisscom provides a /48 prefix for every connection with IPv6.
Is something missing? Send us your feedback!
pilot@swisscom.com
Please describe in which area you expected something different or what we could improve.