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

## 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**: Source or destination port in TCP packet was zero
- **Description**: The stateful firewall discarded the Transmission Control Protocol (TCP) packet with the indicated characteristics, because the source or destination port specified in the packet was zero (0). 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_TCP_PORT_ZERO&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=ASP_SFW_TCP_PORT_ZERO&sw=Junos%20OS&rel=22.2R1)