Symptom
In the 9800 config guide below, the proxy config commands are as below
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-3/config-guide/b_wl_17_3_cg/m-sl-using-policy.html#Cisco_Task.dita_7905cb23-edd1-488d-8452-bee6021974be
Device(config)# license smart proxy 198.51.100.10 port 3128
However, the commands don't work.
Conditions
e is seen on all 17.x versions
Workaround
At this time, no workaround available