PLEX Double-NAT Setup

plex_double_nat.md

PLEX Double-NAT Setup

In the PLEX Troubleshooting Remote Access they have a small section on setting up for Double-NAT, but don’t really get into how to actually do it. In my network I am using a Double-NAT setup with FIOS.

I use the FIOS AC1750 router from which I run an ethernet connection to a Buffalo WZR-HP-AG300H running OpenWRT to which I have my PLEX server and other internet devices connected.

Network Diagram

Here’s a simple diagram of my network.

PLEX Configuration

In your PLEX app go to:

• Settings → Remote Access.
• Check Manually specify public port
• Enter 32400
• Save

Verizon Router Configuration

Port Forwarding

• login
• select Firewall
• click Yes to the "are you sure" message
• select Port Forwarding

You’ll need to add each of the following ports. The IP should be the IP address of the router which the PLEX server connects to. In this example my Buffalo router has a LAN IP of 192.168.1.151.

• UDP:
  • 1900
  • 5353
  • 32400
  • 32410
  • 32411
  • 32412
  • 32413
  • 32414
• TCP:
  • 3005
  • 8324
  • 32400
  • 32469

Universal Plug and Play (UPnP)

• Select Advanced
• click Yes to the "are you sure" message
• Under Network Settings
• Select Universal Plug and Play
• Check UPnP Enabled
• Click apply

OpenWRT Configuration

I prefer using OpenWRT, due to the high level of configurability.

Firewall

• Login to the OpenWRT router
• Select Network → Firewall

Select the Port Forwards tab.

You’ll need to add each of the following ports. The IP should be the IP address of your PLEX server. In this example my PLEX server has an internal IP of 10.10.10.100.

• UDP:
  • 1900
  • 5353
  • 32400
  • 32410
  • 32411
  • 32412
  • 32413
  • 32414
• TCP:
  • 3005
  • 8324
  • 32400
  • 32469

Universal Plug and Play (UPnP)

We’ll also want to install and enable UPnP.

Install UPnP

Select System → Software.

• Enter upnp into Filter
• click Find Package
• Then select Available Packages.

Install both miniupnpd and luci-app-upnp.

Enable UPnP

• Select Services → UPNP

Your general settings should be as such.

If everything went well you should be able to access PLEX remotely, if not, I have no idea what the problem is.

ss_network_diagram.png

ss_openwrt_find_upnp.png

ss_openwrt_miniupnp_screen.png

ss_openwrt_network_firewall.png

ss_openwrt_port_forward_list.png

ss_openwrt_port_forwards_tab.png

ss_openwrt_services_upnp.png

ss_openwrt_system_software.png

ss_verizon_port_forwarding.png

ss_verizon_upnp.png

THANK YOU, SIR!

I've had my share of problems due to the UN-documentation Plex provides for this issue. Thank you so much for a through, well explained tutorial. Blessings.

Double thanks. My Three 5g router (Zyxel NR5103E) now setup on DOUBLE NAT with my DD-WRT main router, IP Passthrough was kinda working but the connection crashed constantly.