ScanStatus

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Reported Status for Tim's IPv6 Port Scanner

IPscan will return one of the following status results for each tested IPv6 TCP/IP port.

For an overview of my scanner, including example results and capabilities, please see my introduction at IPv6. For IANA ICMPv6 mappings please see ICMPv6_Types_Codes. If you're interested in test automation then please see my ScanAutomation section.

Each port tested by my IPv6 Port Scanner will return one of the following states:


Port Status Definition
OPEN An IPv6 TCP connection was successfully established to this port. You should check that this is the expected outcome since an attacker may be able to compromise your machine by accessing this IPv6 address/port combination.
STLTH No response was received from your machine in the allocated time period. This is the ideal response since no-one can ascertain your machines' presence at this IPv6 address/port combination.
ABRT An abort indication was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
RFSD A refused indication (TCP RST/ACK or ICMPv6 type 1 code 4) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
CRST A connection reset request was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
NRST A network reset request was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
PHBTD An administratively prohibited response (ICMPv6 type 1 code 1) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
NUNRCH An unreachable response (ICMPv6 type 1 code 0) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
HUNRCH A No route to host response (ICMPv6 type 1 code 3 or ICMPv6 type 3) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
TOOBIG A Packet too big response (ICMPv6 type 2) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
PRMPRB A Parameter problem response (ICMPv6 type 4) was received when attempting to open this port. Someone can ascertain that your machine is responding on this IPv6 address/port combination, but cannot establish a TCP connection.
UDPOPEN A valid UDP response was received in response to the UDP packet sent to this port. You should check that this is the expected outcome since an attacker may be able to compromise your machine by accessing this IPv6 address/port combination.
UDPSTEALTH No UDP response was received from your machine in the allocated time period. This is the ideal response since no-one can ascertain your machines' presence at this IPv6 address/port combination.


NOTE: Results in the ICMPv6 ECHO REQUEST test marked as INDIRECT indicate an ICMPv6 error response was received from another host (e.g. a router or firewall) rather than the host under test. In this case the IPv6 address of the responding host is also displayed.


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