rfc1918 vlan

tsa/howto/ganeti.mdwn

@@ -136,6 +136,16 @@ instance. Then the filesystem needs to be resized inside the VM:
 
     ssh root@test1.torproject.org resize2fs /dev/sda1
 
+## Adding a network interface on the rfc1918 vlan
+
+We have a vlan that some VMs that do not have public addresses sit on.
+Its vlanid is 4002 and its backed by Hetzner vswitch vSwitch #11973 "fsn-gnt-rfc1918-traffic".
+Note that traffic on this vlan will travel in the clear between nodes.
+
+To add an instance to this vlan, give it a second network interface using
+
+    gnt-instance modify --net add:link=br0,vlan=4002,mode=openvswitch test1.torproject.org
+
 ## Destroying an instance
 
 This totally deletes the instance, including all mirrors and