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Session Report

Summary:
Test run at: 2017-04-11 08:36:39 GMT
Client Prefix (v4): 37.156.10.x/24
Client AS (v4): 43754 (ASIATECH)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /9
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 (37.156.10.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.156.10.x/24/3143754yes
37.156.10.x/24/3043754yes
37.156.10.x/24/2943754yes
37.156.10.x/24/2843754yes
37.156.10.x/24/2743754yes
37.156.10.x/24/2643754yes
37.156.10.x/24/2543754yes
37.156.10.x/24/2443754yes
37.156.11.x/24/2343754yes
37.156.8.x/24/2243754yes
37.156.14.x/24/2143754yes
37.156.2.x/24/2043754yes
37.156.26.x/24/1950810yes
37.156.42.x/24/1848828yes
37.156.74.x/24/1748095yes
37.156.138.x/24/1648159yes
37.157.10.x/24/1557928yes
37.158.10.x/24/143352yes
37.152.10.x/24/1339647yes
37.148.10.x/24/1234714yes
37.140.10.x/24/118369yes
37.188.10.x/24/1042277yes
37.220.10.x/24/935662yes
37.28.10.x/24/8UNROUTEDnatblock

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)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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