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Session Report

Summary:
Test run at: 2021-11-17 10:34:41 GMT
Client Prefix (v4): 62.40.123.x/24
Client AS (v4): 20965 (GEANT)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
62.40.123.x/24/3120965no
62.40.123.x/24/3020965no
62.40.123.x/24/2920965no
62.40.123.x/24/2820965no
62.40.123.x/24/2720965no
62.40.123.x/24/2620965no
62.40.123.x/24/2520965no
62.40.123.x/24/2420965no
62.40.122.x/24/2320965no
62.40.121.x/24/2220965no
62.40.127.x/24/2120965no
62.40.115.x/24/2020965no
62.40.107.x/24/1920965no
62.40.91.x/24/18702no
62.40.59.x/24/1713280no
62.40.251.x/24/168339no
62.41.123.x/24/151136no
62.42.123.x/24/146739no
62.44.123.x/24/135421no
62.32.123.x/24/12197832no
62.56.123.x/24/11UNROUTEDno
62.8.123.x/24/108586no
62.104.123.x/24/95430no
62.168.123.x/24/85578no

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.
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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