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Session Report

Summary:
Test run at: 2023-01-01 22:43:34 GMT
Client Prefix (v4): 137.110.10.x/24
Client AS (v4): 7377 (UCSD)
IPv4 Probes: 60
Client Prefix (v6): 2607:f720:19xx::/40
Client AS (v6): 7377 (UCSD)
IPv6 Probes: 52
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 (137.110.10.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
137.110.10.x/24/317377sendto
137.110.10.x/24/307377sendto
137.110.10.x/24/297377sendto
137.110.10.x/24/287377sendto
137.110.10.x/24/277377sendto
137.110.10.x/24/267377sendto
137.110.10.x/24/257377sendto
137.110.10.x/24/247377sendto
137.110.11.x/24/237377sendto
137.110.8.x/24/227377sendto
137.110.14.x/24/217377sendto
137.110.2.x/24/207377sendto
137.110.26.x/24/197377sendto
137.110.42.x/24/187377sendto
137.110.74.x/24/177377sendto
137.110.138.x/24/167377sendto
137.111.10.x/24/157575sendto
137.108.10.x/24/14786sendto
137.106.10.x/24/13UNROUTEDno
137.102.10.x/24/12UNROUTEDsendto
137.126.10.x/24/11749sendto
137.78.10.x/24/10127sendto
137.46.10.x/24/9UNROUTEDsendto
137.238.10.x/24/826462sendto

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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
2607:f720:19xx::/40/1207377sendto
2607:f720:19xx::/40/1127377sendto
2607:f720:19xx::/40/1047377sendto
2607:f720:19xx::/40/967377sendto
2607:f720:19xx::/40/887377sendto
2607:f720:19xx::/40/807377sendto
2607:f720:19xx::/40/727377sendto
2607:f720:19xx::/40/647377sendto
2607:f720:19xx::/40/567377sendto
2607:f720:19xx::/40/487377sendto
2607:f720:19xx::/40/407377sendto
2607:f720:99xx::/40/327377sendto
2607:f7a0:19xx::/40/24UNROUTEDsendto
2607:7720:19xx::/40/16UNROUTEDsendto

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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