Logo

Session Report

Summary:
Test run at: 2017-05-25 21:20:48 GMT
Client Prefix (v4): 83.100.143.x/24
Client AS (v4): 12390 (KINGSTON-UK-AS)
IPv4 Probes: 118
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.
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 (83.100.143.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
83.100.143.x/24/3112390natblock
83.100.143.x/24/3012390natblock
83.100.143.x/24/2912390natblock
83.100.143.x/24/2812390natblock
83.100.143.x/24/2712390natblock
83.100.143.x/24/2612390natblock
83.100.143.x/24/2512390natblock
83.100.143.x/24/2412390natblock
83.100.142.x/24/2312390natblock
83.100.141.x/24/2212390natblock
83.100.139.x/24/2112390natblock
83.100.135.x/24/2012390natblock
83.100.159.x/24/1912390natblock
83.100.175.x/24/1812390natblock
83.100.207.x/24/1712390natblock
83.100.15.x/24/1616086natblock
83.101.143.x/24/1529690natblock
83.102.143.x/24/148402natblock
83.96.143.x/24/1321155natblock
83.108.143.x/24/122119natblock
83.116.143.x/24/115390natblock
83.68.143.x/24/101764natblock
83.36.143.x/24/93352natblock
83.228.143.x/24/812350natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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.
Last Modified