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Session Report

Summary:
Test run at: 2021-05-26 08:10:01 GMT
Client Prefix (v4): 103.10.28.x/24
Client AS (v4): 45650 (VIANET-NP)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

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 (103.10.28.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.10.28.x/24/3145650rewritten
103.10.28.x/24/3045650rewritten
103.10.28.x/24/2945650rewritten
103.10.28.x/24/2845650rewritten
103.10.28.x/24/2745650rewritten
103.10.28.x/24/2645650rewritten
103.10.28.x/24/2545650rewritten
103.10.28.x/24/2445650rewritten
103.10.29.x/24/2345650rewritten
103.10.30.x/24/2245650rewritten
103.10.24.x/24/2158703rewritten
103.10.20.x/24/2056293rewritten
103.10.12.x/24/199304rewritten
103.10.60.x/24/1838758rewritten
103.10.92.x/24/1710054rewritten
103.10.156.x/24/1645352rewritten
103.11.28.x/24/1558552rewritten
103.8.28.x/24/1458580rewritten
103.14.28.x/24/1358622rewritten
103.2.28.x/24/1238631rewritten
103.26.28.x/24/11UNROUTEDrewritten
103.42.28.x/24/1062468rewritten
103.74.28.x/24/923724rewritten
103.138.28.x/24/8135239rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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