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Session Report

Summary:
Test run at: 2024-04-01 21:07:32 GMT
Client Prefix (v4): 87.247.180.x/24
Client AS (v4): 206065 (FDI)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (87.247.180.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
87.247.180.x/24/31206065rewritten
87.247.180.x/24/30206065rewritten
87.247.180.x/24/29206065rewritten
87.247.180.x/24/28206065rewritten
87.247.180.x/24/27206065rewritten
87.247.180.x/24/26206065rewritten
87.247.180.x/24/25206065rewritten
87.247.180.x/24/24206065rewritten
87.247.181.x/24/23206065rewritten
87.247.182.x/24/2224631rewritten
87.247.176.x/24/2130902rewritten
87.247.188.x/24/2041227rewritten
87.247.164.x/24/19137989rewritten
87.247.148.x/24/185511rewritten
87.247.244.x/24/1720738rewritten
87.247.52.x/24/1621299rewritten
87.246.180.x/24/1512578rewritten
87.245.180.x/24/148732rewritten
87.243.180.x/24/1335370rewritten
87.255.180.x/24/12206114rewritten
87.231.180.x/24/1115557rewritten
87.215.180.x/24/1013127rewritten
87.183.180.x/24/93320rewritten
87.119.180.x/24/82586rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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