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Session Report

Summary:
Test run at: 2023-01-02 00:35:38 GMT
Client Prefix (v4): 128.252.69.x/24
Client AS (v4): 2552 (WUSTL-ASN)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
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 (128.252.69.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
128.252.69.x/24/312552no
128.252.69.x/24/302552no
128.252.69.x/24/292552no
128.252.69.x/24/282552no
128.252.69.x/24/272552no
128.252.69.x/24/262552no
128.252.69.x/24/252552no
128.252.69.x/24/242552no
128.252.68.x/24/232552no
128.252.71.x/24/222552no
128.252.65.x/24/212552no
128.252.77.x/24/202552no
128.252.85.x/24/192552no
128.252.101.x/24/182552no
128.252.5.x/24/172552no
128.252.197.x/24/162552no
128.253.69.x/24/1526no
128.254.69.x/24/14UNROUTEDno
128.248.69.x/24/136200no
128.244.69.x/24/1277no
128.236.69.x/24/11385no
128.220.69.x/24/105723no
128.188.69.x/24/9UNROUTEDno
128.124.69.x/24/821497no

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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