IM Networking

Travel Router 2

Location (when not in use): 2IT1

Model:

  1. TP-Link 8-port POE Switch
  2. HP Prodesk 405 g4 mini

What is it?:

The “Travel Router” is a machine with OpenWRT. It allows for connection to the IM-Nett no matter where the router is. It uses Tailscale to provide a PTP link to the IM-Server. It also allows devices from the IM network connect to it.

Interfaces:

The Ethernet port from the ProDesk, plugs into port 8 on the switch. While WAN is plugged into port 7.

Switch port overview:

  1. LAN port w/POE
  2. LAN port w/POE
  3. LAN port w/POE
  4. LAN port w/POE
  5. LAN port
  6. LAN port
  7. WAN port (plug the upstream internet connection in here!)
  8. Router port (only plug the ProDesk in here)

VLANS: WAN is vlan 101 while LAN is vlan 1. LAN (1) is Native on all ports apart from port 7 WAN (101) is Native on port 7, and Tagged on port 8

How to use:

I have designed the travel router to be as easy as possible to use. Find a ethernet port thats open on any network, make sure that it has DHCP. Plug port 7 into this port, and plug your devices (or a switch) into the LAN ports. (Port 8 on the switch should always be plugged into the computer) After booting up the travel router will act like any other router and provide DHCP addresses on the LAN interface. BUT when traffic is directed to one of the IM-Nett Subnetts, the traffic will be routed through tailscale. When using normal internet services, tailscale will not be used.

Important things to Note:

The network you are plugging into HAS to support UDP and have as few restrictions as possible. If you are on a heavily restrictive network, tailscale will fall back to DERP mode. This mode is VERY slow, and comes with a fair share of lag spikes, in addition this mode puts a LOT of strain on the tailscale servers (who provide this service for free) so theres is a chance that it will get you banned from tailscale.

Who’s account is it on:

Currently the router and server are authenticated through one of Finn’s google accounts. The google account in use is lite****bud@gmail.com In the future someone else will have to make their own tailscale account, and set it up themselves.

Login Info

Passwords for the router are documented elsewhere for safety. The username and password to login to the Switch’s config are: admin/tplink

Graph View