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Session Report

Summary:
Test run at: 2021-05-04 12:28:48 GMT
Client Prefix (v4): 170.81.251.x/24
Client AS (v4): 266439
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (170.81.251.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.81.251.x/24/31266439no
170.81.251.x/24/30266439no
170.81.251.x/24/29266439no
170.81.251.x/24/28266439no
170.81.251.x/24/27266439no
170.81.251.x/24/26266439no
170.81.251.x/24/25266439no
170.81.251.x/24/24266439no
170.81.250.x/24/23266439no
170.81.249.x/24/22266439no
170.81.255.x/24/21264842no
170.81.243.x/24/20UNROUTEDno
170.81.235.x/24/19266425no
170.81.219.x/24/1828134no
170.81.187.x/24/17264084no
170.81.123.x/24/16266406no
170.80.251.x/24/15UNROUTEDno
170.83.251.x/24/1452937no
170.85.251.x/24/13UNROUTEDno
170.89.251.x/24/1223241no
170.65.251.x/24/11UNROUTEDno
170.113.251.x/24/10UNROUTEDno
170.17.251.x/24/93303no
170.209.251.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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