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Session Report

Summary:
Test run at: 2021-03-31 13:28:53 GMT
Client Prefix (v4): 92.223.89.x/24
Client AS (v4): 199524 (GCORE)
IPv4 Probes: 66
Client Prefix (v6): 2a03:90c0:xx::/40
Client AS (v6): 199524 (GCORE)
IPv6 Probes: 56
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 (92.223.89.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
92.223.89.x/24/31199524sendto
92.223.89.x/24/30199524sendto
92.223.89.x/24/29199524sendto
92.223.89.x/24/28199524sendto
92.223.89.x/24/27199524sendto
92.223.89.x/24/26199524sendto
92.223.89.x/24/25199524sendto
92.223.89.x/24/24199524sendto
92.223.88.x/24/23199524sendto
92.223.91.x/24/22199524sendto
92.223.93.x/24/21199524sendto
92.223.81.x/24/20199524sendto
92.223.73.x/24/19199524sendto
92.223.121.x/24/18199524sendto
92.223.25.x/24/17199524sendto
92.223.217.x/24/1612874sendto
92.222.89.x/24/1516276sendto
92.221.89.x/24/1429695sendto
92.219.89.x/24/133209sendto
92.215.89.x/24/123209sendto
92.207.89.x/24/1131655sendto
92.255.89.x/24/1056534sendto
92.159.89.x/24/93215sendto
92.95.89.x/24/815557sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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
2a03:90c0:xx::/40/120199524sendto
2a03:90c0:xx::/40/112199524sendto
2a03:90c0:xx::/40/104199524sendto
2a03:90c0:xx::/40/96199524sendto
2a03:90c0:xx::/40/88199524sendto
2a03:90c0:xx::/40/80199524sendto
2a03:90c0:xx::/40/72199524sendto
2a03:90c0:xx::/40/64199524sendto
2a03:90c0:xx::/40/56199524sendto
2a03:90c0:xx::/40/48199524sendto
2a03:90c0:xx::/40/40UNROUTEDsendto
2a03:90c0:80xx::/40/32UNROUTEDsendto
2a03:9040:xx::/40/2461281sendto
2a03:10c0:xx::/40/1661044sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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