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Session Report

Summary:
Test run at: 2022-09-15 08:22:29 GMT
Client Prefix (v4): 80.255.7.x/24
Client AS (v4): 201011 (NETZBETRIEB-GMBH)
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 /26
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 (80.255.7.x/24) can spoof 63 neighboring addresses (within your /26 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
80.255.7.x/24/31201011yes
80.255.7.x/24/30201011yes
80.255.7.x/24/29201011yes
80.255.7.x/24/28201011yes
80.255.7.x/24/27201011yes
80.255.7.x/24/26201011yes
80.255.7.x/24/25201011no
80.255.7.x/24/24201011no
80.255.6.x/24/23201011no
80.255.5.x/24/22201011no
80.255.3.x/24/21201011no
80.255.15.x/24/20201011no
80.255.23.x/24/1925513no
80.255.39.x/24/1822351no
80.255.71.x/24/1721497no
80.255.135.x/24/1621483no
80.254.7.x/24/1515738no
80.253.7.x/24/148441no
80.251.7.x/24/1342705no
80.247.7.x/24/1250624no
80.239.7.x/24/1125400no
80.223.7.x/24/101759no
80.191.7.x/24/958224no
80.127.7.x/24/83265no

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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