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Cisco ASA Series Firewall CLI Configuration Guide
Chapter30 Configuring the ASA CX Module
Troubleshooting the ASA CX Module
When you enable the authentication proxy, the ASA generates a debug messge when it sends an
authentication proxy TLV to the ASA CX module, giving IP and port details:
DP CXSC Event: Sent Auth proxy tlv for adding Auth Proxy on interface: inside4.
DP CXSC Event: Sent Auth proxy tlv for adding Auth Proxy on interface: cx_inside.
DP CXSC Event: Sent Auth proxy tlv for adding Auth Proxy on interface: cx_outside.
When the interface IP address is changed, auth-proxy tlv updates are sent to the ASA CX module:
DP CXSC Event: Sent Auth proxy tlv for removing Auth Proxy for interface inside.
DP CXSC Event: Sent Auth proxy tlv for adding Auth Proxy on interface: inside.
When a flow is freed on the ASA, the ASA CX module is notified so it can clean up the flow:
DP CXSC Msg: Notifying CXSC that flow (handle:275233990) is being freed for
192.168.18.5:2213 -> 10.166.255.18:80.
When the ASA CX module sends a redirect to a client to authenticate, and that redirect is sent to the
ASA, the ASA sends it to the ASA CX module. In this example, 192.168.18.3 is the interface address
and port 8888 is the authentication proxy port reserved on that interface for the authentication proxy
feature:
DP CXSC Msg: rcvd authentication proxy data from 192.168.18.5:2214 -> 192.168.18.3:8888,
forwarding to cx
When a VPN connection is established on the ASA, and the ASA sends connection information to the
ASA CX module:
CXSC Event: Dumping attributes from the vpn session record
CXSC Event: tunnel->Protocol: 17
CXSC Event: tunnel->ClientVendor: SSL VPN Client
CXSC Event: tunnel->ClientVersion: Cisco AnyConnect VPN Agent for Windows 2.4.1012
CXSC Event: Sending VPN RA session data to CXSC
CXSC Event: sess index: 0x3000
CXSC Event: sess type id: 3
CXSC Event: username: devuser
CXSC Event: domain: CN=Users,DC=test,DC=priv
CXSC Event: directory type: 1
CXSC Event: login time: 1337124762
CXSC Event: nac result: 0
CXSC Event: posture token:
CXSC Event: public IP: 172.23.34.108
CXSC Event: assigned IP: 192.168.17.200
CXSC Event: client OS id: 1
CXSC Event: client OS:
CXSC Event: client type: Cisco AnyConnect VPN Agent for Windows 2.4.1012
CXSC Event: anyconnect data: , len: 0
Problems with the Authentication Proxy
If you are having a problem using the authentication proxy feature, follow these steps to troubleshoot
your configuration and connections:
1. Check your configurations.
•On the ASA, check the output of the show asp table classify domain cxsc-auth-proxy command
and make sure there are rules installed and that they are correct.
•In PRSM, ensure the directory realm is created with the correct credentials and test the connection
to make sure you can reach the authentication server; also ensure that a policy object or objects are
configured for authentication.