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Page: IPv6 addressingscheme
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20 IPv6 addressingscheme
Baran Schöneberg edited this page 2025-06-24 23:01:47 +02:00
Table of Contents

IPv6 Addressing Overview

Unique Local Addresses (ULA) for Inter-Router Transport: fd00::/127

Global Unicast Address for LAN Segments (PI-space-derived): 2001:db8::/48

The network structure reflects a hierarchical and location-aware split of the available IPv6 space, utilizing structured /48 allocations per city and /64 per VLAN.

Transport network addressing scheme

We just need two addresses for a P2P connection between the router

Link Subnet RT-A Address RT-B Address
RT-HH-01 ↔ RT-HL-01 fd00:0:0:1::/127 fd00:0:0:1::0 fd00:0:0:1::1
RT-HH-01 ↔ RT-B-01 fd00:0:0:2::/127 fd00:0:0:2::0 fd00:0:0:2::1
RT-HL-01 ↔ RT-M-01 fd00:0:0:3::/127 fd00:0:0:3::0 fd00:0:0:3::1
RT-B-01 ↔ RT-M-01 fd00:0:0:4::/127 fd00:0:0:4::0 fd00:0:0:4::1
RT-HH-01 ↔ RT-M-01 fd00:0:0:5::/127 fd00:0:0:5::0 fd00:0:0:5::1
RT-HL-01 ↔ RT-B-01 fd00:0:0:6::/127 fd00:0:0:6::0 fd00:0:0:6::1

Local network addressing scheme

IPv6 Vorlage: 2001:db8:Location:Vlan::Device/64

City VLAN Subnet Gateway Address Client/Server Addresses
Hamburg 10 2001:db8:1000:10::/64 2001:db8:1000:10::1 ::10 (Client 1)
Hamburg 20 2001:db8:1000:20::/64 2001:db8:1000:20::1 ::10 (Client 2)
Lübeck 30 2001:db8:2000:30::/64 2001:db8:2000:30::1 ::10 (Client 3)
Lübeck 40 2001:db8:2000:40::/64 2001:db8:2000:40::1 ::10 (Client 4)
Berlin 50 2001:db8:3000:50::/64 2001:db8:3000:50::1 ::10 (DNS/Web Server)
München 60 2001:db8:4000:60::/64 2001:db8:4000:60::1 ::10 (Web Server)

Router Loopback Interface

Router Loopback Address
RT-HH-01 2001:db8:1000:ffff::1/128
RT-HL-01 2001:db8:2000:ffff::1/128
RT-B-01 2001:db8:3000:ffff::1/128
RT-M-01 2001:db8:4000:ffff::1/128

Router-to-Switch Connections

Location Subnet Router Address Switch Address
Hamburg 2001:db8:1000:fff0::/64 2001:db8:1000:fff0::1 2001:db8:1000:fff0::2
Lübeck 2001:db8:2000:fff0::/64 2001:db8:2000:fff0::1 2001:db8:2000:fff0::2
Berlin 2001:db8:3000:fff0::/64 2001:db8:3000:fff0::1 2001:db8:3000:fff0::2
München 2001:db8:4000:fff0::/64 2001:db8:4000:fff0::1 2001:db8:4000:fff0::2