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Session Report

Summary:
Test run at: 2024-03-13 21:10:51 GMT
Client Prefix (v4): 201.217.204.x/24
Client AS (v4): 18747 (IFX18747)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8
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 (201.217.204.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
201.217.204.x/24/3118747yes
201.217.204.x/24/3018747yes
201.217.204.x/24/2918747yes
201.217.204.x/24/2818747yes
201.217.204.x/24/2718747yes
201.217.204.x/24/2618747yes
201.217.204.x/24/2518747yes
201.217.204.x/24/2418747yes
201.217.205.x/24/2318747yes
201.217.206.x/24/2218747yes
201.217.200.x/24/2118747yes
201.217.196.x/24/2018747yes
201.217.220.x/24/1918747yes
201.217.236.x/24/1828015yes
201.217.140.x/24/176057yes
201.217.76.x/24/1614522yes
201.216.204.x/24/1516814yes
201.219.204.x/24/14262215yes
201.221.204.x/24/1314117yes
201.209.204.x/24/128048yes
201.201.204.x/24/1111830yes
201.249.204.x/24/108048yes
201.153.204.x/24/98151yes
201.89.204.x/24/88167yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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 able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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