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Session Report

Summary:
Test run at: 2016-06-23 04:08:39 GMT
Client Prefix (v4): 199.58.164.x/24
Client AS (v4): 29889 (FSNET-1)
IPv4 Probes: 88
Client Prefix (v6): 2601:249:7xx::/40
Client AS (v6): 7922 (COMCAST-7922)
IPv6 Probes: 63
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length nonenone
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 (199.58.164.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
199.58.164.x/24/3129889natblock
199.58.164.x/24/3029889natblock
199.58.164.x/24/2929889natblock
199.58.164.x/24/2829889natblock
199.58.164.x/24/2729889natblock
199.58.164.x/24/2629889natblock
199.58.164.x/24/2529889natblock
199.58.164.x/24/2429889natblock
199.58.165.x/24/2329889natblock
199.58.166.x/24/2229889natblock
199.58.160.x/24/2129889natblock
199.58.172.x/24/2027256natblock
199.58.180.x/24/1913329natblock
199.58.132.x/24/1823486natblock
199.58.228.x/24/17UNROUTEDnatblock
199.58.36.x/24/16UNROUTEDnatblock
199.59.164.x/24/1532421natblock
199.56.164.x/24/14UNROUTEDnatblock
199.62.164.x/24/13UNROUTEDnatblock
199.50.164.x/24/12UNROUTEDnatblock
199.42.164.x/24/11UNROUTEDnatblock
199.26.164.x/24/10UNROUTEDnatblock
199.122.164.x/24/9UNROUTEDnatblock
199.186.164.x/24/87018natblock

Meaning of status in Received column:

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 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:fea2:4a3ano
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::78no
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:9d08no
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::242no
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::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
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::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
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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