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Session Report

Summary:
Test run at: 2016-10-27 18:18:33 GMT
Client Prefix (v4): 204.238.56.x/24
Client AS (v4): 20082 (ABSNOC1)
IPv4 Probes: 104
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
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.
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)

IPv4 Adjacent Netblock Testing:

Your host (204.238.56.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
204.238.56.x/24/3120082yes
204.238.56.x/24/3020082yes
204.238.56.x/24/2920082yes
204.238.56.x/24/2820082yes
204.238.56.x/24/2720082yes
204.238.56.x/24/2620082yes
204.238.56.x/24/2520082yes
204.238.56.x/24/2420082yes
204.238.57.x/24/23UNROUTEDyes
204.238.58.x/24/2227368yes
204.238.60.x/24/21UNROUTEDyes
204.238.48.x/24/20UNROUTEDyes
204.238.40.x/24/19UNROUTEDyes
204.238.24.x/24/187782yes
204.238.120.x/24/172828yes
204.238.184.x/24/16UNROUTEDyes
204.239.56.x/24/15UNROUTEDyes
204.236.56.x/24/1420097yes
204.234.56.x/24/1311714yes
204.230.56.x/24/12UNROUTEDyes
204.254.56.x/24/11701yes
204.206.56.x/24/10UNROUTEDyes
204.174.56.x/24/93633yes
204.110.56.x/24/833576yes

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)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 15 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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