# DFWC_FIL_IDX_FILE_WRITE_FAIL

## Canonical Reference

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

**Canonical URL:**  
https://apps.juniper.net/syslog-explorer/?msg=DFWC_FIL_IDX_FILE_WRITE_FAIL

## SYSLOG Details
- **Message**: Unable to write in file
- **Help**: Unable to write to filter index file
- **Description**: Writing the dummy header of prefix-action content to filter index file failed.
- **Type**: SNO: Should Not Occur
- **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=DFWC_FIL_IDX_FILE_WRITE_FAIL&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=DFWC_FIL_IDX_FILE_WRITE_FAIL&sw=Junos%20OS&rel=23.4R1)