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Session Report

Summary:
Test run at: 2022-07-27 13:25:38 GMT
Client Prefix (v4): 179.253.114.x/24
Client AS (v4): 8167
IPv4 Probes: 60
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 (179.253.114.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.253.114.x/24/318167rewritten
179.253.114.x/24/308167rewritten
179.253.114.x/24/298167rewritten
179.253.114.x/24/288167rewritten
179.253.114.x/24/278167rewritten
179.253.114.x/24/268167rewritten
179.253.114.x/24/258167rewritten
179.253.114.x/24/248167rewritten
179.253.115.x/24/238167rewritten
179.253.112.x/24/228167rewritten
179.253.118.x/24/218167rewritten
179.253.122.x/24/208167rewritten
179.253.98.x/24/198167rewritten
179.253.82.x/24/188167rewritten
179.253.50.x/24/178167rewritten
179.253.242.x/24/168167rewritten
179.252.114.x/24/158167rewritten
179.255.114.x/24/148167rewritten
179.249.114.x/24/1326615rewritten
179.245.114.x/24/1226599rewritten
179.237.114.x/24/117738rewritten
179.221.114.x/24/1028573rewritten
179.189.114.x/24/9263612rewritten
179.125.114.x/24/8263634rewritten

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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