Rube Goldberg would be proud ...

Rube Goldberg was a cartoonist who has a character that invented fantastic chain reaction machines. I may have been channelling his muse for inspiration in getting around my latest NBN failure:
  1. We moved house (Note: there is no such thing as an NBN relocation … its a fiction … its a cancellation and a new connection)
  2. When people order a static IP they really want the same one when they relocate it (see 1)
  3. The Sparkies came, the modem was turned off for a couple of hours … things didn't come back
On the Friday afternoon before a long weekend …

And so it begins …

Building a backup link from stuff I mostly had on hand

My 'router' is a Ubiquiti UniFi Dream Machine (UDM) Pro that supports a failover network.

1 buy an SPF+ Gigabit Ethernet (Ubiquiti UF-RJ45-1G)

2 Configure failover mode on UDM Pro (Create a NEW network that uses the SPF+ interface)

3 Even though the SPF+ module supports 100MBps, the UDM Pro will not operate that device at that speed. Plug a 10 / 100 / 1000 switch in to convert 1G to 100M.

4 Use a TP-Link MR3020 in WISP mode to connect to the Ethernet and join a WiFi Network

5 Use a Telstra Pre-Paid 4GX Modem to provide Internet


Step 6 Curse Carrier Grade NAT (CGNAT) - basically this is the type of NAT you don't want as basically it means that there is no way to connect from the Internet to you

7 Create a VPN to a service which does port forwarding


At this point you can provide services from devices inside your network eg. receive mail on your mail server


Doable but far from ideal … the technician is coming tomorrow