awesome-ipv6

A curated list of IPv6 materials and learning resources

Contents

• Books
• Cheatsheets
• Courses
• Tools
• Services
• Commands
  • ping6
  • ip
  • Bluetooth 6LoWPAN
• Configurations
  • Radvd
  • IPv6 conf
  • Disable Privacy Extensions
• Labs
• RFCs

Books

• IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6
• IPv6 Security
• Linux IPv6 HowTo - All-things manual for IPv6 on Linux

Cheatsheets

• IPv6 Essentials Cheat Sheet
• Internet Protocol Version 6 (IPv6) Basics Cheat Sheet by Jens Roesen
• IPv6 Addressing Guide (pt-BR)

Courses

• IPv6 Training Recommendations from Internet Society
• Linux IPv6 Crash Course

Tools

• Bash ULA Generator
• Radvd

Services

• IPv6.rs - An IPv6 tunnel provider that also provides the Cloud Seeder open source appliance maintenance and deployment suite.

• 17NAS IPv6 Test - Free IPv6 connection test; check IPv4/IPv6 addresses, latency, ISP info and dual-stack status in real time, no signup.

• IP for AI - Free dual-stack check that shows your IPv4 and IPv6 exits separately (ASN, location, proxy signals), since AI services may be reached over a different path on each; also shows the exit each AI provider sees.

Commands

ping6

Documentation

• ping6 <node address> - Ping a node
• ping6 ff02::1%<interface> - Ping all-nodes multicast address on link

ip

Documentation

• ip -6 neigh show - Show neighbor cache
• ip -6 addr/ip -6 a/ ip -6 address - Show IPv6 interfaces addresses
• ip address add 2002:db6::1/64 dev bt0 - Add IPv6 prefix to interface
• ip -6 addr flush label "en*" - Clear all IPv6 addresses on an interface

Bluetooth 6LoWPAN

• Enable 6LoWPAN over Bluetooth
  1. modprobe bluetooth_6lowpan
  2. echo 35 > /sys/kernel/debug/bluetooth/6lowpan_psm
  3. echo 1 > /sys/kernel/debug/bluetooth/6lowpan_enable
• Connect device to host
  • echo "connect XX:XX:XX:XX:XX:XX 2" | sudo tee /sys/kernel/debug/bluetooth/6lowpan_control

Configurations

Radvd

Documentation

interface $iface
{
  AdvSendAdvert on;

  prefix 2b02:6009:aac0:c2a2::/64
  {
    AdvOnLink on;
    AdvAutonomous on;
    AdvRouterAddr on;
  };
};

IPv6 conf

IPv6 configuration in /etc/sysctl.conf, all can be replaced with interface name

• net.ipv6.conf.all.accept_ra=2 - Enable or disable SLAAC
  • 1 -> Enable (disabled, if forwarding=1)
  • 0 -> Disable
  • 2 -> Enable (for all)
• net.ipv6.conf.all.forwarding=1 - Enable IPv6 forwarding
• net.ipv6.conf.all.accept_ra_defrtr=1 - Learn the default router from Router Advertisements
• net.ipv6.conf.all.router_solicitations=1 - Number of Router Solicitations send, before assuming no router available

Disable Privacy Extensions

When disabling privacy extensions, the Interface ID will be generated from the device's MAC address (EUI-64 format). This setting is only effective for managed devices because many operating systems also have built-in MAC address privacy options.

On Windows, open a command prompt as Administrator and paste the following commands:

netsh interface ipv6 set global randomizeidentifiers=disabled store=active
netsh interface ipv6 set global randomizeidentifiers=disabled store=persistent
netsh interface ipv6 set privacy state=disabled store=active
netsh interface ipv6 set privacy state=disabled store=persistent

On Linux, go to /etc/netplan and find the YAML configuration file there. Add ipv6-privacy: off and ipv6-address-generation: eui64 to the appropriate interface:

network:
  version: 2
  ethernets:
    enp0s3:
      ipv6-privacy: off
      ipv6-address-generation: eui64
  renderer: NetworkManager

Labs

• CORE - Open source packet-tracer-like program to create IPv6-enabled environments (pt-BR)

RFCs

• RFC8504: IPv6 Node Requirements Best Current Practice 220
• RFC8200: (STD 86) Internet Protocol, Version 6 (IPv6) Specification
• RFC4291: IP Version 6 Addressing Architecture
• RFC4861: Neighbor Discovery for IP version 6 (IPv6)
• RFC4862: IPv6 Stateless Address Autoconfiguration
• RFC4941: Privacy Extensions for Stateless Address Autoconfiguration in IPv6
• RFC4443: Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
• RFC8106: IPv6 Router Advertisement Options for DNS Configuration
• RFC8415: Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
• RFC3596: DNS Extensions to Support IP Version 6
• RFC6724: Default Address Selection for Internet Protocol Version 6 (IPv6)
• RFC7381: Enterprise IPv6 Deployment Guidelines

Contribute

Contributions welcome! Read the contribution guidelines first.

License

To the extent possible under law, Gabriel Cruz has waived all copyright and related or neighboring rights to this work.