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Session Report

Summary:
Test run at: 2022-07-06 16:30:53 GMT
Client Prefix (v4): 88.81.237.x/24
Client AS (v4): 3326 (Datagroup)
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 /30
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 (88.81.237.x/24) can spoof 3 neighboring addresses (within your /30 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
88.81.237.x/24/313326yes
88.81.237.x/24/303326yes
88.81.237.x/24/293326no
88.81.237.x/24/283326no
88.81.237.x/24/273326no
88.81.237.x/24/263326no
88.81.237.x/24/253326no
88.81.237.x/24/243326no
88.81.236.x/24/233326no
88.81.239.x/24/223326no
88.81.233.x/24/213326no
88.81.229.x/24/203326no
88.81.253.x/24/193326no
88.81.205.x/24/1828947no
88.81.173.x/24/173257no
88.81.109.x/24/1639093no
88.80.237.x/24/1531127no
88.83.237.x/24/1412570no
88.85.237.x/24/1329684no
88.89.237.x/24/122119no
88.65.237.x/24/113209no
88.113.237.x/24/10719no
88.17.237.x/24/93352no
88.209.237.x/24/8211619no

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 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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