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Session Report

Summary:
Test run at: 2018-06-06 14:41:28 GMT
Client Prefix (v4): 177.137.3.x/24
Client AS (v4): 53240
IPv4 Probes: 99
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable received
Largest spoofable neighbor prefix length /14
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 (177.137.3.x/24) can spoof 262143 neighboring addresses (within your /14 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.137.3.x/24/31UNROUTEDsendto
177.137.3.x/24/30UNROUTEDsendto
177.137.3.x/24/29UNROUTEDsendto
177.137.3.x/24/28UNROUTEDsendto
177.137.3.x/24/27UNROUTEDsendto
177.137.3.x/24/26UNROUTEDsendto
177.137.3.x/24/25UNROUTEDsendto
177.137.3.x/24/24UNROUTEDsendto
177.137.2.x/24/23UNROUTEDsendto
177.137.1.x/24/22UNROUTEDsendto
177.137.7.x/24/21UNROUTEDsendto
177.137.11.x/24/20UNROUTEDsendto
177.137.19.x/24/19UNROUTEDsendto
177.137.35.x/24/18UNROUTEDsendto
177.137.67.x/24/17UNROUTEDsendto
177.137.131.x/24/16UNROUTEDsendto
177.136.3.x/24/15UNROUTEDsendto
177.139.3.x/24/1427699yes
177.141.3.x/24/13UNROUTEDsendto
177.129.3.x/24/12UNROUTEDsendto
177.153.3.x/24/11UNROUTEDsendto
177.169.3.x/24/10UNROUTEDsendto
177.201.3.x/24/9UNROUTEDsendto
177.9.3.x/24/8UNROUTEDsendto

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 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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