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Session Report

Summary:
Test run at: 2018-05-17 01:50:52 GMT
Client Prefix (v4): 203.178.136.x/24
Client AS (v4): 2500 (WIDE-BB)
IPv4 Probes: 99
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8

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 (203.178.136.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.178.136.x/24/312500yes
203.178.136.x/24/302500yes
203.178.136.x/24/292500yes
203.178.136.x/24/282500yes
203.178.136.x/24/272500yes
203.178.136.x/24/262500yes
203.178.136.x/24/252500yes
203.178.136.x/24/242500yes
203.178.137.x/24/232500yes
203.178.138.x/24/222500yes
203.178.140.x/24/212500yes
203.178.128.x/24/202500yes
203.178.152.x/24/192500yes
203.178.168.x/24/182500yes
203.178.200.x/24/172500yes
203.178.8.x/24/16UNROUTEDyes
203.179.136.x/24/15UNROUTEDyes
203.176.136.x/24/1438235yes
203.182.136.x/24/134673yes
203.186.136.x/24/129269yes
203.162.136.x/24/1145899yes
203.146.136.x/24/104750yes
203.242.136.x/24/97557yes
203.50.136.x/24/81221yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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 10 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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