topic ZTP+ untagged/tagged in ExtremeSwitching (EXOS/Switch Engine)

ZTP+ untagged/tagged

AntonS — Fri, 29 Jul 2022 11:09:00 GMT

Hello,

I have a switch X435 that is out of the box (30.7.1.1-patch1-86) and want to configure it with ZTP+ on XIQ-SE (ExtremeCloud IQ - Site Engine 22.3.10.74)
The switch is connected to the firewall of the remote location on port 1. On that port I have 25 vlans all of them are tagged!
In that case the switch never gets a DHCP address and cannot contact XIQSE

If I change the firewall to have one vlan untagged, the switch gets an DHCP adress on that vlan and also on the other vlans which are tagged
Is this behaviour normal?
In that case everything is working! The switch gets DHCP address and contacts the XIQSE and is listed on Discovered Devices.

The firewall is a Barracuda Cloudgen Firewall
If I want ZTP+ to be working, do I need to change my setup to have one vlan untagged?
Or has anyone got ZTP+ working with all VLANs tagged?

BR
Anton

RE: ZTP+ untagged/tagged

Ludovico_Steven — Mon, 01 Aug 2022 10:05:00 GMT

When XOS agent does ZTP+ it tries to do DHCP across every possible VLAN q-tag (1-4095) as well as untagged.
So no, I would expect it to work even if your firewall only has tagged VLANs.
Have not tried this recently, but this worked fine last time I tried.

RE: ZTP+ untagged/tagged

AntonS — Thu, 04 Aug 2022 16:41:00 GMT

Thank you for your reply.

I think it is related to the firewall, which sees the requests but does not answer it.

Its obsolete for me, because we pre configure the devices now.