How do I find Cable Modem IP address if using Orbi

Question

I have an Orbi, I'm using as a Router with a Hitron cable modem that's also a router. I have the Hitron in IP Passthrough mode to the Orbi.

However, I can't figure out a way to login to the Hitron unless I plug in a wired connection directly to it. Is there a way to look up the IP address of the Hitron and login to it from the Orbi? The gateway address on the Orbi doesn't work -- unless I have to identify the port number or something.

Thanks.

CrimpOn · Answer

This is a fascinating question.&nbsp; Now that the Hitron is essentially "a modem", it no longer has an IP address of its own.&nbsp; The "public" IP address belongs to the Orbi.&nbsp; Will be interested in the solution if someone comes up with one.&nbsp;The other question, of course, is "why?"&nbsp; Getting the Hitron into passthrough mode avoids "double NAT", which is what is recommended.

IcedCorn · Answer

Because I may want to turn on WiFi on the hitron, because the speeds seem better sometimes. I don't understand why but they do.

Same with wired to hitron vs wired to Orbi. And the Orbi is literally right next to the hitron.

CrimpOn · Answer

Does the Hitron have more than one LAN port on the back?&nbsp; A lot of modem/routers respond to 192.168.100.1 as a default.(or was it 192.168.0.1?&nbsp; oh, geez.&nbsp; memory has failed me, and I deleted my notes when my UBEE was swapped out a couple of months ago)

IcedCorn · Answer

I think that will just direct me to the Orbi.&nbsp;

CrimpOn · Answer

Well, with the Hiltron in passthrough mode, the WAN port on the Orbi will have the public IP address from the ISP (Sprectum, Cox, whomever).&nbsp; The Orbi typically assigns itself 192.168.1.1 as the internet gateway for all attached devices and uses DHCP to assign addresses in the 192.168.1.x range to everything attached to itself.&nbsp; So, 192.168.0.x is not part of the Orbi network.&nbsp; Neither is 192.168.100.x&nbsp;Back when I had the UBEE operating in router mode, I was able to connect to it, and my (dim) memory was that the UBEE web interface was at 192.168.100.1 or 192.168.0.1.&nbsp; I can't do that anymore because my UBEE was replaced with a "simple modem" and I have (as yet) never found a method for the user to connect to a management interface on the modem.&nbsp; (I want to look at "signal levels".)

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How do I find Cable Modem IP address if using Orbi

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