Logo

Session Report

Summary:
Test run at: 2017-05-18 13:02:57 GMT
Client Prefix (v4): 79.171.53.x/24
Client AS (v4): 30722 (VODAFONE-IT-ASN)
IPv4 Probes: 132
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (79.171.53.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
79.171.53.x/24/3130722natblock
79.171.53.x/24/3030722natblock
79.171.53.x/24/2930722natblock
79.171.53.x/24/2830722natblock
79.171.53.x/24/2730722natblock
79.171.53.x/24/2630722natblock
79.171.53.x/24/2530722natblock
79.171.53.x/24/2430722natblock
79.171.52.x/24/2350973natblock
79.171.55.x/24/2250973natblock
79.171.49.x/24/2150973natblock
79.171.61.x/24/2051906natblock
79.171.37.x/24/1920860natblock
79.171.21.x/24/1844565natblock
79.171.117.x/24/1764494natblock
79.171.181.x/24/1629037natblock
79.170.53.x/24/1543766natblock
79.169.53.x/24/142860natblock
79.175.53.x/24/1312418natblock
79.163.53.x/24/125617natblock
79.187.53.x/24/115617natblock
79.139.53.x/24/1044874natblock
79.235.53.x/24/93320natblock
79.43.53.x/24/83269natblock

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.
Last Modified