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Session Report

Summary:
Test run at: 2024-02-23 23:28:23 GMT
Client Prefix (v4): 131.161.62.x/24
Client AS (v4): 263569
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
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 (131.161.62.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
131.161.62.x/24/31263569natblock
131.161.62.x/24/30263569natblock
131.161.62.x/24/29263569natblock
131.161.62.x/24/28263569natblock
131.161.62.x/24/27263569natblock
131.161.62.x/24/26263569natblock
131.161.62.x/24/25263569natblock
131.161.62.x/24/24263569natblock
131.161.63.x/24/23263569natblock
131.161.60.x/24/22263569natblock
131.161.58.x/24/2114178natblock
131.161.54.x/24/20263686natblock
131.161.46.x/24/19265144natblock
131.161.30.x/24/18264360natblock
131.161.126.x/24/17264387natblock
131.161.190.x/24/16264392natblock
131.160.62.x/24/15158natblock
131.163.62.x/24/14UNROUTEDnatblock
131.165.62.x/24/136834natblock
131.169.62.x/24/121754natblock
131.177.62.x/24/111759natblock
131.129.62.x/24/104685natblock
131.225.62.x/24/93152natblock
131.33.62.x/24/8721natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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