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Session Report

Summary:
Test run at: 2022-11-09 14:00:01 GMT
Client Prefix (v4): 207.62.218.x/24
Client AS (v4): 2152 (CSUNET-NW)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /24
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 (207.62.218.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
207.62.218.x/24/312152yes
207.62.218.x/24/302152yes
207.62.218.x/24/292152yes
207.62.218.x/24/282152yes
207.62.218.x/24/272152yes
207.62.218.x/24/262152yes
207.62.218.x/24/252152yes
207.62.218.x/24/242152yes
207.62.219.x/24/232152no
207.62.216.x/24/222152no
207.62.222.x/24/212152no
207.62.210.x/24/202152no
207.62.202.x/24/192152no
207.62.250.x/24/182152no
207.62.154.x/24/177960no
207.62.90.x/24/1623117no
207.63.218.x/24/156325no
207.60.218.x/24/14139646no
207.58.218.x/24/1322958no
207.54.218.x/24/1217327no
207.46.218.x/24/118075no
207.30.218.x/24/102379no
207.126.218.x/24/932626no
207.190.218.x/24/87029no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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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