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Session Report

Summary:
Test run at: 2024-06-18 20:38:33 GMT
Client Prefix (v4): 185.231.254.x/24
Client AS (v4): 9063 (SAARGATE-AS)
IPv4 Probes: 69
Client Prefix (v6): 2a02:2c60:ecxx::/40
Client AS (v6): 9063 (SAARGATE-AS)
IPv6 Probes: 64
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedunknown
Routable blockedunknown
Largest spoofable neighbor prefix length nonenone
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (185.231.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.231.254.x/24/319063natblock
185.231.254.x/24/309063natblock
185.231.254.x/24/299063natblock
185.231.254.x/24/289063natblock
185.231.254.x/24/279063natblock
185.231.254.x/24/269063natblock
185.231.254.x/24/259063natblock
185.231.254.x/24/249063natblock
185.231.255.x/24/239063natblock
185.231.252.x/24/229063natblock
185.231.250.x/24/219009natblock
185.231.246.x/24/20202984natblock
185.231.238.x/24/19205044natblock
185.231.222.x/24/1857043natblock
185.231.190.x/24/17205041natblock
185.231.126.x/24/1620647natblock
185.230.254.x/24/15UNROUTEDnatblock
185.229.254.x/24/1439251natblock
185.227.254.x/24/1346261natblock
185.239.254.x/24/12202636natblock
185.247.254.x/24/11UNROUTEDnatblock
185.199.254.x/24/10205443natblock
185.167.254.x/24/9UNROUTEDnatblock
185.103.254.x/24/8200740natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:2c60:ecxx::/40/1209063no
2a02:2c60:ecxx::/40/1129063no
2a02:2c60:ecxx::/40/1049063no
2a02:2c60:ecxx::/40/969063no
2a02:2c60:ecxx::/40/889063no
2a02:2c60:ecxx::/40/809063no
2a02:2c60:ecxx::/40/729063no
2a02:2c60:ecxx::/40/649063no
2a02:2c60:ecxx::/40/569063no
2a02:2c60:ecxx::/40/489063no
2a02:2c60:ecxx::/40/409063no
2a02:2c60:6cxx::/40/329063no
2a02:2ce0:ecxx::/40/24UNROUTEDno
2a02:ac60:ecxx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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