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Session Report

Summary:
Test run at: 2020-07-24 05:55:35 GMT
Client Prefix (v4): 79.133.255.x/24
Client AS (v4): 21412 (CGATES-AS)
IPv4 Probes: 75
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 (79.133.255.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
79.133.255.x/24/3121412rewritten
79.133.255.x/24/3021412rewritten
79.133.255.x/24/2921412rewritten
79.133.255.x/24/2821412rewritten
79.133.255.x/24/2721412rewritten
79.133.255.x/24/2621412rewritten
79.133.255.x/24/2521412rewritten
79.133.255.x/24/2421412rewritten
79.133.254.x/24/2321412rewritten
79.133.253.x/24/2221412rewritten
79.133.251.x/24/2121412rewritten
79.133.247.x/24/2021412rewritten
79.133.239.x/24/1921412rewritten
79.133.223.x/24/1820853rewritten
79.133.191.x/24/1748503rewritten
79.133.127.x/24/168749rewritten
79.132.255.x/24/1560853rewritten
79.135.255.x/24/1445013rewritten
79.129.255.x/24/136799rewritten
79.141.255.x/24/1228972rewritten
79.149.255.x/24/113352rewritten
79.165.255.x/24/108615rewritten
79.197.255.x/24/93320rewritten
79.5.255.x/24/83269rewritten

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 able to spoof routable, non-adjacent source addresses through the first 1 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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