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stuyboy's avatar
stuyboy
Tutor
Dec 26, 2021

LM1200 in Router Mode: Port Forwarding or DMZ working for you?

LM1200 on Verizon, using alongwide WAN/Cable as cellular backup.

Unfortunately using in Router mode as I'm on Verizon (Bridge works fine).

 

Hosting a few servers, so I'd like to forward ports (443) to my primary router (Edgerouter X)

 

I tried using Port Forwarding rules as well as DMZ (pointing to the DHCP assigned address for my Edgerouter ie 192.168.5.40, making sure to configure DHCP so it can only assign one address to my Edgerouter).

 

On Cellular, I don't expect to reach my servers, but even on Broadband, the DMZ and Port Forwarding rules don't seem to work.  Obviously my Edgerouter has the appropriate port forwarding IPs configured.

 

Anyone get the LM1200 to port forward "twice" in Router mode?  

 

My backup plan is to switch to a TMo plan, hopefully allowing me to use LM1200 in Bridge mode, making this all much simpler.

 

 

2 Replies

  • Uptonk's avatar
    Uptonk
    Aspirant
    Apr 18, 2022

    Did you ever get your port forwarding to work?

     

    I am using the LM1200 with Verizon also.  I have a TP-Link router connected to the LM1200.  I have set up my port forwarding on the TP-Link, but I can't enter the IP of my LAN device in the LM1200 because the IP range is different.  192.168.5.x for the modem, 192.168.0.x for the router LAN.  

     

    I couldn't get my router to stay online when the modem was in Bridge mode, but it works fine in Router mode.  I had hoped to stay in Bridge mode to avoid this type conflict, but no such luck.

    • stuyboy's avatar
      stuyboy
      Tutor
      Apr 19, 2022

      No, I tried all sorts of combinations to port forward, but didn't run into this IP problem as you allude to.  I think I was also trying to port forward twice, through my router which was itself configured to port forward to another server on my LAN.  Obviously I wasn't expecting it to work well when on LTE, but my problem is that it wouldn't work while on broadband either. 

       

      In the end I signed up for a small plan with Net10 wireless, which does not rely on Verizon, and got it to barely work.  But in my case, it's a backup connection anyway, so didn't matter.  But I would have preferred to be on Verizon (along with all my other devices), and that problem is STILL not solved, check the other thread for details.