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Session Report

Summary:
Test run at: 2017-10-31 00:27:41 GMT
Client Prefix (v4): 46.148.164.x/24
Client AS (v4): 197405 (TOMKOW-AS)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable blocked
Largest spoofable neighbor prefix length /29
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 (46.148.164.x/24) can spoof 7 neighboring addresses (within your /29 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.148.164.x/24/31197405no
46.148.164.x/24/30197405yes
46.148.164.x/24/29197405yes
46.148.164.x/24/28197405no
46.148.164.x/24/27197405no
46.148.164.x/24/26197405no
46.148.164.x/24/25197405no
46.148.164.x/24/24197405no
46.148.165.x/24/23197405no
46.148.166.x/24/22197405no
46.148.160.x/24/21197405no
46.148.172.x/24/20197405no
46.148.180.x/24/19204161no
46.148.132.x/24/1844056no
46.148.228.x/24/1750473no
46.148.36.x/24/1651788no
46.149.164.x/24/15UNROUTEDno
46.150.164.x/24/1449106no
46.144.164.x/24/131136no
46.156.164.x/24/122119no
46.132.164.x/24/111759no
46.180.164.x/24/1039927no
46.212.164.x/24/912929no
46.20.164.x/24/816347no

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 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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