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Session Report

Summary:
Test run at: 2017-02-19 08:51:24 GMT
Client Prefix (v4): 211.255.172.x/24
Client AS (v4): 10036 (CNM-AS-KR)
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 (211.255.172.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
211.255.172.x/24/3110036no
211.255.172.x/24/3010036no
211.255.172.x/24/2910036no
211.255.172.x/24/2810036no
211.255.172.x/24/2710036no
211.255.172.x/24/2610036no
211.255.172.x/24/2510036no
211.255.172.x/24/2410036no
211.255.173.x/24/2310036no
211.255.174.x/24/2210036no
211.255.168.x/24/2110036no
211.255.164.x/24/2010036no
211.255.188.x/24/1910036no
211.255.140.x/24/184766no
211.255.236.x/24/179848no
211.255.44.x/24/1638661no
211.254.172.x/24/153786no
211.253.172.x/24/144766no
211.251.172.x/24/134766no
211.247.172.x/24/129457no
211.239.172.x/24/119848no
211.223.172.x/24/104766no
211.191.172.x/24/94670no
211.127.172.x/24/84725no

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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