auth_alg
Description:
When WEP is used (ie, key-mgmt = "none" or "ieee8021x") indicate the 802.11 authentication algorithm required by the AP here.
One of "open" for Open System, "shared" for Shared Key, or "leap" for Cisco LEAP. When using Cisco LEAP (ie, key-mgmt = "ieee8021x" and auth-alg = "leap") the "leap-username" and "leap-password" properties must be specified.