Update README.md

README.md

@@ -18,7 +18,11 @@ Virtual switch: Open vSwitch 3.1.0
 ## Network topology
 ![Network topology](img/lab2.png)
 
-## Configuring the bridge 
+### Configuring Systems
+## Bridge br0
+
+The bridge is part of the host system. Thus, it is configured using the network manager command line tool. These settings will be permanent.
+
 Info about current connetions
 
     # nmcli con show
@@ -35,7 +39,12 @@ Turn on the bridge
 
     # nmcli con up bridge-labBridge0
 
-## Create virtual network on hypervisor
+## Hypervisor
+
+KVM is used as a hypervisor in this project. You may use virsh on the cli or virt-manager as a graphical tool.
+
+### Create virtual network on hypervisor
+
 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
    
     <network>
@@ -55,4 +64,26 @@ Then start it
     $ virsh net-list
      Name              Status   Automatischer Start   Bleibend
     ------------------------------------------------------------
-     bridged-network   Aktiv    ja                    ja
+     bridged-network   Aktiv    ja                    ja##
+## Torino
+
+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.
+
+### DHCP Client
+
+The dhcpcd package has to be installed on the OpenBSD system. 
+
+    # pkg_add dhcpcd
+    # rcctl enable dhcpcd
+
+Edit the config file /etc/dhcpcd.conf
+
+    ipv6only
+    noipv6rs
+    
+    script ""
+    
+    allowinterfaces vio0 re0
+    interface vio0
+      ipv6rs
+      ia_pd 1 re0/1