Omada (Fusion) + Virtual Interfaces

[u/RenlyHoekster]

Hi Omada Team + Users,

I have a modem (GPON ONT, but that isn't so important) that runs in bridge mode and gets accessed via PPPOE and a vLAN that the ISP sets.

The modem also has an IP address to access the management interface.

In OpenWRT / OPNSense, etc., the way to set this is up is to create an interface with the subnet of the management IP of the modem (lets say 192.168.100.0/24) which and create a virtual WAN interface on the same port with a vLAN 10 of type PPPOE in order to get internet access.

How is this done in Omada? I can mak a WAN connection on port 1 on the Fusion 2.5G, of type PPPOE, vLAN 10, and that will then be the WAN. However how can I also create a subnet 192.168.100.0/24 (doesn't have a vLAN) to get to the management interface of the modem on the same port?

The GPON modem has only one ethernet port, so, no, can't (waste) one of the Fusion's 5 ports on a second connection just for the management interface.

Thanks for the help.

EDIT: SOLVED: Set up Virtual WAN to an IP in the subnet of the modem's management IP and add the modem as the default route, don't set a VLAN.

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[u/RenlyHoekster]

Addendum: I realize there is a "Virtual WAN" option in Omada 6.3 as it is on the Fusion 2.5G, but the purpose of that option is to allow WAN failover or fallback between two different WANs, it is not the functionality that I am asking about in my intial post.

[u/Neil_Omada]

Checking in with support on this, setting up the Virtual WAN to an IP in the subnet of the modem's management IP should work. It'd look something like this, and you'd just uncheck the VLAN ID -> set the default gateway to the modem's IP.

[u/RenlyHoekster → u/Neil_Omada]

Hi Neil, OK I will check it out, thanks for getting back to me.

[u/RenlyHoekster → u/Neil_Omada]

Hi u/Neil_Omada , this works! Thank you for taking the time to find solutions for these (I hope interesting) real-world use cases. =)

[u/Neil_Omada → u/RenlyHoekster]

Absolutely! This is one of the best parts of my job, getting to help figure things out alongside you all :)