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Session Report

Summary:
Test run at: 2023-07-31 19:19:35 GMT
Client Prefix (v4): 91.215.189.x/24
Client AS (v4): 49701 (RIA-LINK-AS)
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 (91.215.189.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.215.189.x/24/3149701rewritten
91.215.189.x/24/3049701rewritten
91.215.189.x/24/2949701rewritten
91.215.189.x/24/2849701rewritten
91.215.189.x/24/2749701rewritten
91.215.189.x/24/2649701rewritten
91.215.189.x/24/2549701rewritten
91.215.189.x/24/2449701rewritten
91.215.188.x/24/2349701rewritten
91.215.191.x/24/2249701rewritten
91.215.185.x/24/2115510rewritten
91.215.181.x/24/2020860rewritten
91.215.173.x/24/1948757rewritten
91.215.157.x/24/1860144rewritten
91.215.253.x/24/1731376rewritten
91.215.61.x/24/1649617rewritten
91.214.189.x/24/15208913rewritten
91.213.189.x/24/1435913rewritten
91.211.189.x/24/1348698rewritten
91.223.189.x/24/1257554rewritten
91.199.189.x/24/1149505rewritten
91.247.189.x/24/1056485rewritten
91.151.189.x/24/95433rewritten
91.87.189.x/24/847377rewritten

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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