# ASP_SFW_UDP_HEADER_LEN_ERROR

## Canonical Reference

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

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

## SYSLOG Details
- **Message**: <variable>syslog-prefix</variable> <variable>error-code</variable>: proto <variable>protocol-id</variable> (<variable>protocol-name</variable>), <variable>source-interface-name</variable><variable>separator</variable><variable>source-address</variable>:<variable>source-port</variable> -> <variable>destination-address</variable><variable>destination-port</variable>, <variable>event-type</variable>
- **Help**: UDP packet failed header-length check
- **Description**: The stateful firewall discarded the User Datagram Protocol (UDP) packet with the indicated characteristics, because the length field in the packet header was shorter than the minimum 8 bytes required for an UDP packet. The discarded packet contained the indicated information about its protocol (numerical identifier and name), source (logical interface name, IP address, and port number), and destination (IP address and port number).
- **Type**: Event: This message reports an event, not an error
- **Severity**: notice
- **Cause**: -
- **Action**: -
- **Attributes**: syslog-prefix
error-code
protocol-id
protocol-name
source-interface-name
separator
source-address
source-port
destination-address
destination-port
event-type
- **Facility**: LOG_PFE

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_UDP_HEADER_LEN_ERROR&sw=Junos%20OS&rel=22.2R1)