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Session Report

Summary:
Test run at: 2016-03-31 15:55:51 GMT
Client Prefix (v4): 212.121.88.x/24
Client AS (v4): 8816 (IT-STCOM)
IPv4 Probes: 87
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /24
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 (212.121.88.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.121.88.x/24/318816yes
212.121.88.x/24/308816yes
212.121.88.x/24/298816yes
212.121.88.x/24/288816yes
212.121.88.x/24/278816yes
212.121.88.x/24/268816yes
212.121.88.x/24/258816yes
212.121.88.x/24/248816yes
212.121.89.x/24/238816no
212.121.90.x/24/228816no
212.121.92.x/24/218816no
212.121.80.x/24/208816no
212.121.72.x/24/198816no
212.121.120.x/24/1828685no
212.121.24.x/24/17UNROUTEDno
212.121.216.x/24/16786no
212.120.88.x/24/159143no
212.123.88.x/24/148612no
212.125.88.x/24/138426no
212.113.88.x/24/129166no
212.105.88.x/24/112119no
212.89.88.x/24/1012870no
212.57.88.x/24/912305no
212.249.88.x/24/8702no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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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