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Session Report

Summary:
Test run at: 2019-06-10 23:19:50 GMT
Client Prefix (v4): 189.40.102.x/24
Client AS (v4): 26615
IPv4 Probes: 93
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (189.40.102.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.40.102.x/24/3126615rewritten
189.40.102.x/24/3026615rewritten
189.40.102.x/24/2926615rewritten
189.40.102.x/24/2826615rewritten
189.40.102.x/24/2726615rewritten
189.40.102.x/24/2626615rewritten
189.40.102.x/24/2526615rewritten
189.40.102.x/24/2426615rewritten
189.40.103.x/24/2326615rewritten
189.40.100.x/24/2226615rewritten
189.40.98.x/24/2126615rewritten
189.40.110.x/24/2026615rewritten
189.40.118.x/24/1926615rewritten
189.40.70.x/24/1826615rewritten
189.40.38.x/24/1726615rewritten
189.40.230.x/24/1626615rewritten
189.41.102.x/24/1553006rewritten
189.42.102.x/24/144230rewritten
189.44.102.x/24/1310429rewritten
189.32.102.x/24/1228573rewritten
189.56.102.x/24/1110429rewritten
189.8.102.x/24/1028670rewritten
189.104.102.x/24/97738rewritten
189.168.102.x/24/88151rewritten

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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