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Session Report

Summary:
Test run at: 2020-11-30 00:40:15 GMT
Client Prefix (v4): 165.254.18.x/24
Client AS (v4): 2914 (NTT-COMMUNICATIONS-2914)
IPv4 Probes: 75
Client Prefix (v6): 2001:418:14xx::/40
Client AS (v6): 2914 (NTT-COMMUNICATIONS-2914)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
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.

Warnings:

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 (165.254.18.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
165.254.18.x/24/312914no
165.254.18.x/24/302914no
165.254.18.x/24/292914no
165.254.18.x/24/282914no
165.254.18.x/24/272914no
165.254.18.x/24/262914no
165.254.18.x/24/252914no
165.254.18.x/24/242914no
165.254.19.x/24/232914no
165.254.16.x/24/222914no
165.254.22.x/24/212914no
165.254.26.x/24/202914no
165.254.2.x/24/1920940no
165.254.50.x/24/1820940no
165.254.82.x/24/172914no
165.254.146.x/24/162914no
165.255.18.x/24/1537611no
165.252.18.x/24/147018no
165.250.18.x/24/132824no
165.246.18.x/24/129317no
165.238.18.x/24/11UNROUTEDno
165.222.18.x/24/10UNROUTEDno
165.190.18.x/24/98122no
165.126.18.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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
2001:418:14xx::/40/1202914no
2001:418:14xx::/40/1122914no
2001:418:14xx::/40/1042914no
2001:418:14xx::/40/962914no
2001:418:14xx::/40/882914no
2001:418:14xx::/40/802914no
2001:418:14xx::/40/722914no
2001:418:14xx::/40/642914no
2001:418:14xx::/40/562914no
2001:418:14xx::/40/482914no
2001:418:14xx::/40/402914no
2001:418:94xx::/40/322914no
2001:498:14xx::/40/24UNROUTEDno
2001:8418:14xx::/40/161221no

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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