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Forum Discussion
Orbi RBR20 Ethernet IP assignment
I fired up the Obi kit with 2 Satellites I'm in Australia with a TPG HFC connection to the NBN. Enabled VLAN ID = 2 and everything connected via wifi. (Great setup BTW) Nothing, and I mean NOTHING...
I know this sounds loony, but I am drawn to this comment on pages 84-85 in the User Manual:
"A bridge with a VLAN tag group prevents packets that are sent between the IPTV device and the router’s Internet port from being processed through the router’s Network Address Translation (NAT) service"
There is a lot I do not understand, but one thing I am pretty certain of is that no device can communicate with the internet unless it has an IP address. Orbi gets a public IP address from the ISP and creates a "private" IP address space for every device connected to it. If devices in a VLAN group are NOT processed through the router NAT service, then what is their IP address?
Hmmm. That's another clue. If one of the wired devices that cannot reach the internet is a Windows PC, open a DOS box and do a
config /all
What IP address shows up for the ethernet adapter? If it begins with "169." that is the IP address reserved for "nobody will give me an IP so I'm just going to say this is who I am."
Yes the devices all get 169.x ip addresses.
Wifi is working fine though
You are correct - every device needs an IP.
I just tried to set up another group by changing the VLAN settings. Crashed the whole thing and had to Factory Reset. Oops
Chillihilli wrote:Yes the devices all get 169.x ip addresses.
Wifi is working fine though
My belief is that the VLAN bridge does not apply to WiFi devices, thus they get a valid private IP address from the Orbi via DHCP. Then, every connection between them and the internet is processed by the Orbi NAT. "All is good".
When this setup is done, I would try a connected device before defining any VLAN.
The problem is that internet does not work without the VLAN ID set.
I tried to deselect VLAN ID, lost the internet connection and had to connect manually to get it working
So no VLAN = no internet
Things really are "upside down" there! Can you try to restrict the VLAN bridge group to only a single ethernet port?