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Session Report

Summary:
Test run at: 2016-07-12 08:55:00 GMT
Client Prefix (v4): 37.35.107.x/24
Client AS (v4): 198385 (AlpineDC)
IPv4 Probes: 88
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /21

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 (37.35.107.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.35.107.x/24/31198385yes
37.35.107.x/24/30198385yes
37.35.107.x/24/29198385yes
37.35.107.x/24/28198385yes
37.35.107.x/24/27198385yes
37.35.107.x/24/26198385yes
37.35.107.x/24/25198385yes
37.35.107.x/24/24198385yes
37.35.106.x/24/23198385yes
37.35.105.x/24/22198385yes
37.35.111.x/24/21198385yes
37.35.99.x/24/2049974no
37.35.123.x/24/1915600no
37.35.75.x/24/1850957no
37.35.43.x/24/17199823no
37.35.235.x/24/1612715no
37.34.107.x/24/1543925no
37.33.107.x/24/1416086no
37.39.107.x/24/13UNROUTEDno
37.43.107.x/24/1235819no
37.51.107.x/24/113320no
37.3.107.x/24/101257no
37.99.107.x/24/921299no
37.163.107.x/24/851207no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 6 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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