topic Re: Zyxel NR5103E IP Passthrough in Network

Zyxel NR5103E IP Passthrough

aflatbroke — Sat, 26 Nov 2022 23:51:42 GMT

Hello!

I ordered the Three 5G Hub Zyxel NR5103E, I have intermittent 5G, varying from as low as 24mbps to 580mbps. My home network is a Unifi USG gateway followed by Access Points.

I am using the NR5103E in (IP Passthrough) Bridge Mode via Lan ethernet to my Unifi USG. Even though I have put the NR5103E in IP Passthrough and Allowed the USG to do the Routing etc.

The problem is the NR5103E is not passing its WAN IP to the USG. Instead it is passing one DHCP IP address. Anyone know another setting to get the WAN IP to the USG?

Re: Zyxel NR5103E IP Passthrough

PeteG — Sun, 27 Nov 2022 19:12:05 GMT

Hello there.

Welcome to the Three Community.

Oh that's an interesting question. I'm not sure what features are available on the latest Zyxel software, but I don't think it has bridge mode on it. In any case, bridge mode is normally only needed for wireless networks. If you're connecting to the Zyxel through ethernet, it should be able to do what you want, and bypass it's wireless features.

I'm not familiar with the system you are using, but if you've set it to bridge mode, it might be performing it's own NAT. It might be worth connecting it in standard routing mode to see if this produces the results you desire.

Pete.

Re: Zyxel NR5103E IP Passthrough

crypt0ninja — Wed, 07 Dec 2022 19:27:11 GMT

Hi Pete,

IP Passthrough is supposed to be the same as Bridge Mode AFAIK (correct me if I'm wrong), and when enabled the NR5103E should essentially just act as a modem and nothing else, all DHCP, Routing, QOS etc should then be handled by the passthrough device connected to the NR5103E via ethernet e.g. Aftermarket Router/Mesh system

Without bridge mode/IP passthrough for these types of setups (which are common tbf) you potentially run into double NAT issues which can be problematic.

I did quickly try IP Passthrough on the NR5103E recently with a TP-Link Deco P9 set and had the same problem as @aflatbroke where the Deco was not being passed the WAN IP it was still being given an internal address so it may possibly be a bug, however I didn't thoroughly test and I cant do any further tests as I just sent the Deco P9 kit back as the performance was awful lol

As IP Passthrough didn't work for me when I was running the Deco's I just set the Deco's to run in AP mode instead of Router mode, so that the NR5103E managed all DHCP, NAT, Routing etc and the Deco's became simple access points (this method also avoids double NAT but when you spend good money on a router you ideally want it to be managing everything, hence IP Passthrough/Bridge Mode).

I'll try do some more testing when I find a better powerline mesh network setup for my home.

Re: Zyxel NR5103E IP Passthrough

aflatbroke — Wed, 07 Dec 2022 21:30:43 GMT

Thanks for your input cryt0ninjaI think to have the WAN IP pass through the NR5103E it doesn't feel like a software bug, but IP Passthrough should do just that! I wonder if it's something to do with it being a mobile sim. My current set up is a hard wired copper to fibre cabinet down the road through a Draytek 130 modem in bridge mode, through Cat6 to a Unifi USG with access points through Unifi AC Pro's. I also have Unifi Nano Beams sending my internet to Neighbour 100m down the road. I get around 50mbps up and 18 down. The system works floorless. But with 5G through the NR5103E giving me between 80-700mbps but latency is terrible. The idea is with IP Passthrough it would be a great solution to have that speed. I too will continue to experiment and post if I find a solution.

Re: Zyxel NR5103E IP Passthrough

floored — Tue, 25 Apr 2023 09:44:23 GMT

Hey @aflatbroke did you end up finding any solution to this?

Re: Zyxel NR5103E IP Passthrough

aflatbroke — Tue, 25 Apr 2023 20:01:01 GMT

Hi Floored, sorry I have not found a solution. It seems this is a common issue with mobile broadband. I now use the 5G NR5103E as a standby as I said latency is terrible and speeds are to erratic. So it sits there costing me £20/month. If you have better luck please post here. Thank you.

Re: Zyxel NR5103E IP Passthrough

davidraw — Sun, 30 Apr 2023 10:33:26 GMT

Hi,

I just set my NR5103E in IP PASSTHROUGH mode connect by ethernet to a tp-link ER605 router and it worked 1st time.

My ER605 has a WAN address in the public internet range rather than the locat 192.168.1.1/24 range it had before.

It doesn't seem to have significantly changed speed or pings, but it's nice not to have a double NAT situation anymore.

Re: Zyxel NR5103E IP Passthrough

davidraw — Wed, 03 May 2023 11:10:59 GMT

After a day or two I hit a problem - my router couldn't get the WAN ip address from the NR5103E... so maybe the required functionality is not quite there yet.

Having tried everything I could find in the web interface, I reset the router to factory and I'm double-NATing again 😥

Re: Zyxel NR5103E IP Passthrough

Waggers — Sun, 24 Sep 2023 07:36:44 GMT

Can I ask where you found the IP Passthrough settings?

I've just received my NRT5103E running firmware V1.00(ACBJ.0)b14 and I can't see any setting for IP Passthrough.

Re: Zyxel NR5103E IP Passthrough

Waggers — Wed, 27 Sep 2023 20:36:19 GMT

Ah, found it! Under broadband settings.

Re: Zyxel NR5103E IP Passthrough

bazantus — Sun, 08 Oct 2023 16:05:35 GMT

did anyone find a solution?
I cannot register a couple of devices (musiccast, Roku) on NR5103E WiFi - or when it manages the local network.
I just spend £200 on Synology WRX router to run into the same issue: IP Passover does not work whatever I tried. It just cannot detect internet access 😞

I can use Synology in the Access Point mode - but this does not make sense as a) still cannot register musiccast.
Ordering Asus to see if it can cope better -- but I doubt this will work any better.

Any solutions / missing setting?

cheers,

Re: Zyxel NR5103E IP Passthrough

JonathanB — Wed, 11 Oct 2023 15:11:45 GMT

Hi @bazantus,

It may be worth trying the steps advised in the thread. Although primarily concerning VPN connections, setting a manual APN profile and for this to use IPv4 only seems to be helping with some device connectivity issues. There's some helpful tips and screenshots in the thread and replies.

Thanks,
Jonathan

Re: Zyxel NR5103E IP Passthrough

Muppettdwvil — Sun, 11 Feb 2024 01:28:33 GMT

2 things occur to me.

Connect the 3 hub network cable to the WAN port on your secondary router.
Theres no chance it will work without this.
Did you turn off DHCP server on the 3 hub. Burger menu > Network Setting > Home Networking.
If not then the wan ip you want is likely to come from the 3 hub DHCP server, rather than being passed through WAN address that you want. Obviously then your router has to handle DHCP, QoS, UPnP, Port Forwarding etc., at least something on your network does, Pi Hole, Adguard, some server etc. etc.

I have had this working in the past, but it's flaky, stopped every few days. Sometimes a reboot of both routers would fix it, sometimes it wouldnt. I wish 3 would fix this because DHCP management and Port forwarding is crap on ISP routers.

I'm using an R8000 with DD-WRT as my internal router (now just as a WIFI AP because of the issues with IP FORWARDING being so flaky on the 3 hub.), I hope this helps.
I don't know any more than this..

Re: Zyxel NR5103E IP Passthrough

HalfSavvyTech — Fri, 07 Jun 2024 07:13:48 GMT

I just tried putting the NR5103 in pass through to an ASUS router and nothing worked but probably due to me putting the wrong settings in the ASUS. Did anyone ever manage to get this working and have some guidance on what the settings are ? I chose the ASUS AC68U as it has most support out there on Youtube etc but there isn't much on setting up with a pass through LTE4/5g
I have set up secondary routers to work in dual WAN mode which basically gives you a second LAN network with different IP which is OK but you can't use certain features of the secondary router such as DDNS and I have set up the secondary routers in bridge mode where they just act as a switch and wireless AP

Re: Zyxel NR5103E IP Passthrough

jamesmarkcook — Thu, 25 Jul 2024 10:40:06 GMT

I got it working. https://community.three.co.uk/t5/Broadband/How-to-setup-IP-Passthrough-Bridge-mode-for-Zyxel-NR5103E/m-p/33809#M6402

Re: Zyxel NR5103E IP Passthrough

jamesmarkcook — Thu, 25 Jul 2024 10:40:30 GMT

I got it working here: https://community.three.co.uk/t5/Broadband/How-to-setup-IP-Passthrough-Bridge-mode-for-Zyxel-NR5103E/m-p/33809#M6402

Re: Zyxel NR5103E IP Passthrough

HalfSavvyTech — Thu, 25 Jul 2024 10:54:42 GMT

Thanks for that however i gave up messing with it and just use the camera manufacturers server service to bypass the whole port forwarding remote access thing. I set up a DDNS in the Dahua camera which gives me the ip address and also set up a " health test email " on another camera which also gives you the current ip from which I can remotely access the router for whatever reason