90 lines
2.5 KiB
Markdown
90 lines
2.5 KiB
Markdown
# IPv6-Lab
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## Initial situation
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In this project, a laboratory for IPv6 will be set up using a desktop computer with a current Debian system. To use the computer furthermore for its actual purpose, this should be done as far as possible without stirring up a lot of dust (e.g. using various outdated network backends).
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OS: Debian GNU/Linux 12
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Kernel: 6.1.0-18-amd64
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Network backend: NetworkManager
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Hypervisor: KVM
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Virtual switch: Open vSwitch 3.1.0
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## Required packages
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- openvswitch-switch
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- gvncviewer
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## Network topology
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### Configuring Systems
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## Bridge br0
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The bridge is part of the host system. Thus, it is configured using the network manager command line tool. These settings will be permanent.
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Info about current connetions
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# nmcli con show
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Add bridge
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# nmcli con add type bridge ifname labBridge0
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Add interface to the bridge
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# nmcli con add type bridge-slave ifname wlp4s0 master labBridge0
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Turn on the bridge
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# nmcli con up bridge-labBridge0
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## Hypervisor
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KVM is used as a hypervisor in this project. You may use virsh on the cli or virt-manager as a graphical tool.
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### Create virtual network on hypervisor
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Here we create a new network to be used by the edge router torino by creating a new file named bridged-network.xml with the following content
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<network>
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<name>bridged-network</name>
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<forward mode="bridge" />
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<bridge name="br0" />
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</network>
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To create the network on the hypervisor, run
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$ virsh net-define bridged-network.xml
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Then start it
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$ virsh net-start bridged-network
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$ virsh net-autostart bridged-network
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$ virsh net-list
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Name Status Automatischer Start Bleibend
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------------------------------------------------------------
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bridged-network Aktiv ja ja##
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## Torino
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Torino is the WAN router of the lab. On the external interface torino acts as a DHCPv6 client in order to receive a Prefix Delegation from the DSL-Router (Fritz!Box in this case). On the internal interface torino will serve Router Advertisements which is necessary for SLAAC. The hosts in the lab environment connectetd to the vSwitch will receive a prefix via SLAAC this way.
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### DHCP Client
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The dhcpcd package has to be installed on the OpenBSD system.
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# pkg_add dhcpcd
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# rcctl enable dhcpcd
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Edit the config file /etc/dhcpcd.conf
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ipv6only
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noipv6rs
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script ""
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allowinterfaces vio0 re0
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interface vio0
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ipv6rs
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ia_pd 1 re0/1
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