I have an interesting observation while testing auth-proxy on a router.
The authenticating router has HTTP server enabled but there's nothing set for 
authentication yet.

I see that the HTTP server default authentication method is set to "enable":

R4#sh ip http server all
HTTP server status: Enabled
HTTP server port: 80
HTTP server authentication method: enable

When I initiate HTTP session to the host behind the router R4 I'm challenged 
with the authentication window, login as "httpuser" that is stored in TACACS 
and it is successful.

R4#sh ip auth-proxy cache
Authentication Proxy Cache
Client Name httpuser, Client IP 200.13.24.200, Port 1456, timeout 60, Time 
Remaining 54, state ESTAB

Doing HTTP debugs on the router show me that the router chooses aaa as 
auth-type.

*Jul 29 19:55:47.613: uname httpuser
*Jul 29 19:55:47.613: timetag 91998348
*Jul 29 19:55:47.613: HTTP: Authentication proxy_username = 'httpuser' 
priv-level = 0 auth-type = aaa

The question is if we set "aaa authentication login default group tacacs" and 
"aaa authorization auth-proxy default group tacacs" it overrides the local http 
authentication method?

Eugene


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