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Session Report

Summary:
Test run at: 2017-02-10 17:49:12 GMT
Client Prefix (v4): 91.226.36.x/24
Client AS (v4): 197564 (INTERNETSTIFTELSEN)
IPv4 Probes: 90
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 (91.226.36.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.226.36.x/24/31197564natblock
91.226.36.x/24/30197564natblock
91.226.36.x/24/29197564natblock
91.226.36.x/24/28197564natblock
91.226.36.x/24/27197564natblock
91.226.36.x/24/26197564natblock
91.226.36.x/24/25197564natblock
91.226.36.x/24/24197564natblock
91.226.37.x/24/23197564natblock
91.226.38.x/24/2231242natblock
91.226.32.x/24/2156617natblock
91.226.44.x/24/2048964natblock
91.226.52.x/24/1934744natblock
91.226.4.x/24/1850662natblock
91.226.100.x/24/17197839natblock
91.226.164.x/24/1644678natblock
91.227.36.x/24/1515694natblock
91.224.36.x/24/1442595natblock
91.230.36.x/24/1329205natblock
91.234.36.x/24/1261190natblock
91.242.36.x/24/1156864natblock
91.194.36.x/24/103292natblock
91.162.36.x/24/912322natblock
91.98.36.x/24/816322natblock

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 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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