Nebula NR7101 - how to open ports

GiuseppeR · November 2022

Hello,

I installed a pair of Nebula NR7101.

I have also a pair of firewalls on those sites, so I want that NR7101s pass any traffic to the firewall.

I disabled it in the options:

and I use the NR7101 in "IP Passthrough Mode".

No way to open a specific port from the WAN:

- neither placing it in "Protocol" section (2 rules for TCP and UDP)

- neither using "Access Control" for enabling those 2 services created in protocol

- neither creating a generic rule in "Access Control" saying open port XY on the TCP/UDP

It seems that there is no way to enter that port.

I saw a guide:

https://support.zyxel.eu/hc/en-us/articles/360021412820-NR7101-How-to-set-bridge-mode-cellular-IP-passthrough-

1- Have I to disable IP passthrough?

I think so because I see no DHCP clients in "Home Networking" so I cannot use DMZ, Port Forwarding and so on.

2- After disabling bridge mode is it correct to place the firewall of the site in the DMZ?

3- If so, which is the reason to use it in IP passthrough mode?

4- The section in the picture above, as you see called "Firewall", is an add-on to the ATP100 (for example) that we install on site or it is a protection only for the NR7101?

Thanks in advance.

Zyxel_Judy · November 2022

Hi there,

In case your NR7101 in “IP Passthrough mode”, your firewall (the ATP100 for example) will get the IP from IPS so NR7101s pass any traffic to the firewall. And then, you can configure Port Forwarding at your firewall.

This link shows you the example to set up port forwarding: How to setup port forwarding to my internal RDP PC? — Zyxel Community

GiuseppeR · November 2022

Thanks @Zyxel_JudyHu

it was not working properly because my Telco did not assign me a public IP.

Have a nice weekend.

Nebula NR7101 - how to open ports

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