Bridge mode of Three modem - how to access GUI

[Susi]

Hi,

I have a ZYXEL NR5103e (Three edition with .12 Firmware) which I have put into Bridge mode (simple activation of IP passthrough option in the GUI of the Zyxel). I connected the Zyxel to an ASUS RT82U (ZYXEL LAN -> ASUS WAN), so the ASUS now performs all router duties. Everything seems to work fine so far.

However, I cannot access the GUI of the ZYXEL anymore after I have set it to Bridge mode. 192.168.1.1 does not work anymore. What do I need to change in the ASUS main router so that I can access the ZYXEL GUI again? I cannot see the ZYXEL in the ASUS network map. I would need access to the ZYXEL GUI to monitor 5G signal strength etc.

Any ideas?

 

[Susi]

The zyxel will get a dynamic ip from isp if in bridge mode. 192.168.1.1 or the likes won't work. You should be able to find the gateway ip from the Asus router gui and then get back on the zyxel that way. If the zyxel is rebooted, the ip will change again.

Thank you so much for this. I have spend an hour yesterday with the ASUS support, and they asserted it is impossible.

Can I ask: What's the difference between the WAN IP and the Gateway IP? Are both assigned by the ISP? Why are they not the same?