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Session Report

Summary:
Test run at: 2017-07-11 10:23:11 GMT
Client Prefix (v4): 213.160.162.x/24
Client AS (v4): 6855 (SK-TELEKOM)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none
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 (213.160.162.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.160.162.x/24/316855rewritten
213.160.162.x/24/306855rewritten
213.160.162.x/24/296855rewritten
213.160.162.x/24/286855rewritten
213.160.162.x/24/276855rewritten
213.160.162.x/24/266855rewritten
213.160.162.x/24/256855rewritten
213.160.162.x/24/246855rewritten
213.160.163.x/24/236855rewritten
213.160.160.x/24/226855rewritten
213.160.166.x/24/216855rewritten
213.160.170.x/24/206855rewritten
213.160.178.x/24/196855rewritten
213.160.130.x/24/1812963rewritten
213.160.226.x/24/1741572rewritten
213.160.34.x/24/1621232rewritten
213.161.162.x/24/152116rewritten
213.162.162.x/24/14UNROUTEDrewritten
213.164.162.x/24/1320748rewritten
213.168.162.x/24/129080rewritten
213.176.162.x/24/1121193rewritten
213.128.162.x/24/10203424rewritten
213.224.162.x/24/96848rewritten
213.32.162.x/24/8200484rewritten

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 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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