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Session Report

Summary:
Test run at: 2016-06-15 21:23:24 GMT
Client Prefix (v4): 199.187.221.x/24
Client AS (v4): 19230 (NANOG)
IPv4 Probes: 90
Client Prefix (v6): 2620:0:cxx::/40
Client AS (v6): 19230 (NANOG)
IPv6 Probes: 65
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedreceived
Largest spoofable neighbor prefix length /9none

Meaning of result status in column:

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 (199.187.221.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
199.187.221.x/24/3119230yes
199.187.221.x/24/3019230yes
199.187.221.x/24/2919230yes
199.187.221.x/24/2819230yes
199.187.221.x/24/2719230yes
199.187.221.x/24/2619230yes
199.187.221.x/24/2519230yes
199.187.221.x/24/2419230yes
199.187.220.x/24/2319230yes
199.187.223.x/24/2219230yes
199.187.217.x/24/2119230yes
199.187.213.x/24/2014185yes
199.187.205.x/24/1919331yes
199.187.253.x/24/1819201yes
199.187.157.x/24/1711641yes
199.187.93.x/24/16UNROUTEDno
199.186.221.x/24/157018yes
199.185.221.x/24/14852yes
199.191.221.x/24/13UNROUTEDno
199.179.221.x/24/12UNROUTEDno
199.171.221.x/24/11701yes
199.155.221.x/24/104152yes
199.251.221.x/24/9721yes
199.59.221.x/24/8UNROUTEDno

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
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.
IPv6 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78yes
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:468:d01:103::80df:9d08yes
2001:49aa:111:aa00::112001:468:d01:103::80df:9d08no
fd11:1111:1111::11112001:468:d01:103::80df:9d08no
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98yes
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cyes
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
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