It seems that Web-auth and auth-proxy are not supported on 3750-x (I am running 12.2(55)SE IP-Services IOS).
CONFIG 1)
!
ip device tracking
ip auth-proxy auth-proxy-banner http
ip auth-proxy name HTTPPROXY http inactivity-time 60
!
interface GigabitEthernet1/0/2
no switchport
ip address 172.16.14.100 255.255.255.0
Switch(config)#int g 1/0/2
Switch(config-if)#ip auth-proxy HTTPPROXY
% This config is not supported on this platform. Try configuring a new rule.
CONFIG 2)
ip device tracking
ip admission auth-proxy-banner http
ip admission name webauth proxy http inactivity-time 60
!
Switch(config-if)#int g 1/0/2
Switch(config-if)#ip admission webauth
% This config is not supported on this platform. Try configuring a new rule.
From the manual it should be supported: ....and specifies the ingress Layer 2 or Layer 3
| Command | Purpose |
---|
Step 1 | ip admission name name proxy http | Configure an authentication rule for web-based authorization. |
|
Step 2 | interface type slot/port | Enter interface configuration mode and specifies the ingress Layer 2 or Layer 3 interface to be enabled for web-based authentication. type can be fastethernet, gigabit ethernet, or tengigabitethernet. |
Step 3 | ip access-group name | Apply the default ACL. |
Step 4 | ip admission name | Configures web-based authentication on the specified interface. |
Step 5 | exit | Return to configuration mode. |
Step 6 | ip device tracking | Enables the IP device tracking table. |
Step 7 | end | Return to privileged EXEC mode. |
Step 8 | show ip admission configuration | Display the configuration. |
Step 9 | copy running-config startup-config | (Optional) Save your entries in the configuration file. |