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Session Report

Summary:
Test run at: 2022-09-17 04:43:46 GMT
Client Prefix (v4): 200.229.147.x/24
Client AS (v4): 52468
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable received
Largest spoofable neighbor prefix length /18
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 (200.229.147.x/24) can spoof 16383 neighboring addresses (within your /18 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.229.147.x/24/3152468sendto
200.229.147.x/24/3052468sendto
200.229.147.x/24/2952468sendto
200.229.147.x/24/2852468sendto
200.229.147.x/24/2752468sendto
200.229.147.x/24/2652468sendto
200.229.147.x/24/2552468sendto
200.229.147.x/24/2452468sendto
200.229.146.x/24/2352468sendto
200.229.145.x/24/2252468sendto
200.229.151.x/24/2120207sendto
200.229.155.x/24/2021826sendto
200.229.131.x/24/1918547sendto
200.229.179.x/24/18262688yes
200.229.211.x/24/1761778sendto
200.229.19.x/24/161239sendto
200.228.147.x/24/154230sendto
200.231.147.x/24/144230sendto
200.225.147.x/24/1314571sendto
200.237.147.x/24/1228624sendto
200.245.147.x/24/114230sendto
200.197.147.x/24/10UNROUTEDsendto
200.165.147.x/24/97738sendto
200.101.147.x/24/88167sendto

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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.
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