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Session Report

Summary:
Test run at: 2016-11-21 13:10:43 GMT
Client Prefix (v4): 195.66.254.x/24
Client AS (v4): 5459 (LINX-AS)
IPv4 Probes: 105
Client Prefix (v6): 2a01:40:54xx::/40
Client AS (v6): 5459 (LINX-AS)
IPv6 Probes: 72
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (195.66.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
195.66.254.x/24/315459no
195.66.254.x/24/305459no
195.66.254.x/24/295459no
195.66.254.x/24/285459no
195.66.254.x/24/275459no
195.66.254.x/24/265459no
195.66.254.x/24/255459no
195.66.254.x/24/245459no
195.66.255.x/24/235459no
195.66.252.x/24/22UNROUTEDno
195.66.250.x/24/215459no
195.66.246.x/24/20UNROUTEDno
195.66.238.x/24/19UNROUTEDno
195.66.222.x/24/1834661no
195.66.190.x/24/178585no
195.66.126.x/24/1634629no
195.67.254.x/24/153301no
195.64.254.x/24/148258no
195.70.254.x/24/138437no
195.74.254.x/24/121241no
195.82.254.x/24/11UNROUTEDno
195.98.254.x/24/102200no
195.2.254.x/24/941079no
195.194.254.x/24/8786no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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