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

## SYSLOG Details
- **Message**: Error "conn_addr" has invalid protocol family.
- **Help**: unknown connection address family found
- **Description**: libdfwd found that connection address has an unknown protocol family that is presently not supported.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: Contact your technical support representative.
- **Attributes**: -
- **Facility**: LOG_DAEMON

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