113042: Non-HTTP connection denied by redirect filter
Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.
Message: %ASA-4-113042: CoA: Non-HTTP connection from src_if :src_ip /src_port to dest_if: dest_ip /dest_port for user username at client_IP denied by redirect filter; only HTTP connections are supported for redirection.
Event 113042 is generated when the redirect ACL filter drops the matching non-HTTP traffic during the redirect processing and provides information about the terminated traffic flow. The message contains information on the:
- Source interface, IP address, and port.
- Destination interface, IP address, and port.
- User name.
- IP address of the client.
How could you resolve this situation?
Validate the redirect ACL configuration on the ASA. Ensure that the correct filter is used to match the traffic to redirect and does not block the flow that is intended to be allowed through.