# [LIBDFWD_INVALID_CLIENT_ID_SESS](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_INVALID_CLIENT_ID_SESS)

## SYSLOG Details
- **Message**: client_id <variable>client-id</variable> not known
- **Help**: invalid client-id in the session
- **Description**: libdfwd found that the given client-id is not matching with any of the valid client-ids in the client-id list in the session.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: Contact your technical support representative.
- **Attributes**: client-id
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_INVALID_CLIENT_ID_SESS&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_INVALID_CLIENT_ID_SESS&sw=Junos%20OS&rel=23.4R1)