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Session Report

Summary:
Test run at: 2023-08-13 04:07:46 GMT
Client Prefix (v4): 205.251.7.x/24
Client AS (v4): 29838 (AMC)
IPv4 Probes: 63
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (205.251.7.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
205.251.7.x/24/3129838sendto
205.251.7.x/24/3029838sendto
205.251.7.x/24/2929838sendto
205.251.7.x/24/2829838sendto
205.251.7.x/24/2729838sendto
205.251.7.x/24/2629838sendto
205.251.7.x/24/2529838sendto
205.251.7.x/24/2429838sendto
205.251.6.x/24/2329838sendto
205.251.5.x/24/2229838sendto
205.251.3.x/24/2129838sendto
205.251.15.x/24/2029838sendto
205.251.23.x/24/1929838sendto
205.251.39.x/24/1829838sendto
205.251.71.x/24/1729838sendto
205.251.135.x/24/16UNROUTEDsendto
205.250.7.x/24/15852sendto
205.249.7.x/24/14UNROUTEDsendto
205.255.7.x/24/1314145sendto
205.243.7.x/24/121239sendto
205.235.7.x/24/1123031sendto
205.219.7.x/24/103561sendto
205.187.7.x/24/97029sendto
205.123.7.x/24/8210sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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.
Last Modified