Add 'NONE-CKUBU3'

NONE-CKUBU3/README.txt

@@ -0,0 +1,25 @@
+
+Notice:
+   You have to change some configuration files becaus the because
+   the configuration of network interfaces must not be equal.
+
+   !! Take care, to use the right device names !!
+   Maybe they are called i.e. 'enp0sXX', but you can rename it.
+   See also : README.rename.netdevices
+
+   For the backup gateway host:
+      eth1 --> LAN
+      eth2 --> WAN or ppp0 (DSL device)
+
+      eth0 --> WLAN or second LAN or what ever
+      or
+      br0  --> WLAN or second LAN or what ever
+
+
+   So you have to change the following files
+      dsl-provider.NONE-CKUBU: ppp0 comes over eth2
+      interfaces.NONE-CKUBU: see above
+      default_isc-dhcp-server.NONE-CKUBU
+      ipt-firewall.NONE-CKUBU: LAN device (mostly ) = eth1
+                                second LAN WLAN or what ever (if present) = eth0
+