PEAP or WPA-Enterprise not accessible

[c buhtz posteo jp]

Hello togehter,

I would like to know that a network-manager (especially the nm-tray) 
need to offer Enterprise connections with PEAP (e.g. for "eduroam" 
WLAN)?

The background of my question:
In a usual Debian bullsey (stable, 11) the nm is able to connect to 
"eduroam" with PEAP etc. No problem there.

But I also have a minimal Debian bullsey (image for raspberry pi 4 from 
raspi.debian.net) with no X and no default user. I added a user myself 
and installed xfce and network-manager. I can connect to usual home 
network WLANs (WPA2). Then I tried to create a new connection via the 
nm-tray symbol to a PEAP (WPA-Enterprise?). The problem is that "PEAP" 
is not offered to my. It is missing in the "security" drop down menu. 
Also WPA-Enterprise is missing.

I assume that some components are missing. But searching the Debian 
repository I got no hint what could it be. Do you have any idea?

Kind
Christian