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Session Report

Summary:
Test run at: 2017-08-07 03:12:17 GMT
Client Prefix (v4): 14.181.202.x/24
Client AS (v4): 45899 (VNPT-AS-VN)
IPv4 Probes: 120
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (14.181.202.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
14.181.202.x/24/3145899yes
14.181.202.x/24/3045899yes
14.181.202.x/24/2945899yes
14.181.202.x/24/2845899yes
14.181.202.x/24/2745899yes
14.181.202.x/24/2645899yes
14.181.202.x/24/2545899yes
14.181.202.x/24/2445899yes
14.181.203.x/24/2345899yes
14.181.200.x/24/2245899yes
14.181.206.x/24/2145899yes
14.181.194.x/24/2045899yes
14.181.218.x/24/1945899yes
14.181.234.x/24/1845899yes
14.181.138.x/24/1745899yes
14.181.74.x/24/1645899yes
14.180.202.x/24/15UNROUTEDnatblock
14.183.202.x/24/1445899yes
14.177.202.x/24/1345899yes
14.189.202.x/24/1245899yes
14.165.202.x/24/1145899yes
14.149.202.x/24/104134yes
14.245.202.x/24/9UNROUTEDnatblock
14.53.202.x/24/84766yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 10 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.
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