topic Re: Mobility Express - Enable P2P comms across bands in Wireless

Mobility Express - Enable P2P comms across bands

InteraX2 — Sun, 04 May 2025 07:25:07 GMT

Hi all,

I have a 2800 AP running Mobility Express with 3 x 2700 APs.

I have a device connected to my single WLAN using 2.4Ghz and I need to access it from devices connected to the WLAN using 5Ghz.

In the WLAN settings, the 'Peer to Peer Block' option is disabled.

How can I enable this access/comms?

Thanks.

Re: Mobility Express - Enable P2P comms across bands

Mark Elsen — Sun, 04 May 2025 08:25:52 GMT

- If both bands (2.4 GHz and 5 GHz) are configured under the same SSID and mapped to the same VLAN/subnet, clients on either band will reside in the same Layer 2/Layer 3 domain. Traffic between them is routed internally by the wireless infrastructure (access point or controller). Under these conditions it will work,

Re: Mobility Express - Enable P2P comms across bands

Rich R — Sun, 04 May 2025 13:25:23 GMT

As @Mark Elsen says this should just work because they're all in the same broadcast domain, but there might be more to the setup that you have not disclosed which could be relevant.

For example are you using static IPs which might require the passive client feature (often needed for things like printers), or are you relying on multicast (bonjour/mDNS) which might require some tweaks on your wireless or switches?

What version of software are you using? Make sure it's up to date as per the TAC recommended link below. AireOS is end of life now so final release 8.10.196.0 should be used.

Re: Mobility Express - Enable P2P comms across bands

InteraX2 — Tue, 06 May 2025 10:21:28 GMT

Hi both,

As mentioned, this is a single WLAN/SSID/VLAN, so my understanding was that it should just work. I am running version 8.10.196.0.

@Rich R You are correct in that this is a device behind a WiFi to Ethernet adapter with a static IP address. I didn't think this would be relevant, but obviously it was. I had to make 3 changes in total:

1. Set a Multicast IP address in the WLAN advanced settings (requried for 2)

2. Enable 'Global Multicast' in 'Services > Media Stream> (required for 3)

3. Enable 'Passive Client' in WLAN advanced settings.

I can now access the devices over the WLAN successfully.

Thanks for your help.

Re: Mobility Express - Enable P2P comms across bands

Rich R — Tue, 06 May 2025 11:02:17 GMT

Cool - thanks for confirming the changes that were needed - handy for anybody else with a similar issue.