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Session Report

Summary:
Test run at: 2020-08-28 20:57:23 GMT
Client Prefix (v4): 189.127.208.x/24
Client AS (v4): 28235
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (189.127.208.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.127.208.x/24/3128235rewritten
189.127.208.x/24/3028235rewritten
189.127.208.x/24/2928235rewritten
189.127.208.x/24/2828235rewritten
189.127.208.x/24/2728235rewritten
189.127.208.x/24/2628235rewritten
189.127.208.x/24/2528235rewritten
189.127.208.x/24/2428235rewritten
189.127.209.x/24/2328235rewritten
189.127.210.x/24/2228235rewritten
189.127.212.x/24/2128235rewritten
189.127.216.x/24/2028235rewritten
189.127.192.x/24/1928234rewritten
189.127.240.x/24/1828229rewritten
189.127.144.x/24/17270704rewritten
189.127.80.x/24/16262589rewritten
189.126.208.x/24/1528227rewritten
189.125.208.x/24/143549rewritten
189.123.208.x/24/1328573rewritten
189.119.208.x/24/1226615rewritten
189.111.208.x/24/1127699rewritten
189.95.208.x/24/1022085rewritten
189.63.208.x/24/928573rewritten
189.255.208.x/24/8UNROUTEDrewritten

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 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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