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Session Report

Summary:
Test run at: 2019-07-01 08:51:20 GMT
Client Prefix (v4): 77.243.226.x/24
Client AS (v4): 25459 (NEDZONE-AS)
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 (77.243.226.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
77.243.226.x/24/3125459rewritten
77.243.226.x/24/3025459natblock
77.243.226.x/24/2925459rewritten
77.243.226.x/24/2825459rewritten
77.243.226.x/24/2725459rewritten
77.243.226.x/24/2625459rewritten
77.243.226.x/24/2525459rewritten
77.243.226.x/24/2425459rewritten
77.243.227.x/24/2325459rewritten
77.243.224.x/24/2225459rewritten
77.243.230.x/24/2125459rewritten
77.243.234.x/24/2025459rewritten
77.243.242.x/24/1912958rewritten
77.243.194.x/24/18UNROUTEDrewritten
77.243.162.x/24/1720969rewritten
77.243.98.x/24/1634602rewritten
77.242.226.x/24/1542739rewritten
77.241.226.x/24/1442517rewritten
77.247.226.x/24/1343248rewritten
77.251.226.x/24/126830rewritten
77.227.226.x/24/1112430rewritten
77.211.226.x/24/1012430rewritten
77.179.226.x/24/96805rewritten
77.115.226.x/24/88374rewritten

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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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