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Session Report

Summary:
Test run at: 2017-06-12 14:03:58 GMT
Client Prefix (v4): 66.171.128.x/24
Client AS (v4): 27618 (QUICKSTREAM)
IPv4 Probes: 131
Client Prefix (v6): 2604:8280:xx::/40
Client AS (v6): 27618 (QUICKSTREAM)
IPv6 Probes: 79
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length nonenone

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 (66.171.128.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
66.171.128.x/24/3127618natblock
66.171.128.x/24/3027618natblock
66.171.128.x/24/2927618natblock
66.171.128.x/24/2827618natblock
66.171.128.x/24/2727618natblock
66.171.128.x/24/2627618natblock
66.171.128.x/24/2527618natblock
66.171.128.x/24/2427618natblock
66.171.129.x/24/2327618natblock
66.171.130.x/24/2227618natblock
66.171.132.x/24/2127618natblock
66.171.136.x/24/2027618natblock
66.171.144.x/24/1920281natblock
66.171.160.x/24/1811478natblock
66.171.192.x/24/1711855natblock
66.171.0.x/24/1619201natblock
66.170.128.x/24/153356natblock
66.169.128.x/24/1420115natblock
66.175.128.x/24/1311272natblock
66.163.128.x/24/1214090natblock
66.187.128.x/24/1133327natblock
66.139.128.x/24/107018natblock
66.235.128.x/24/915224natblock
66.43.128.x/24/87029natblock

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 able to spoof routable, non-adjacent source addresses through the first 4 IP hop(s).
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:fea2:4a3ayes
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:4978:1fb:6400::d22001:410:102:1::78yes
2001:49aa:111:aa00::112001:410:102:1::78yes
fd11:1111:1111::11112001:410:102:1::78yes
2001:4978:1fb:6400::d22001:410:90ff::5yes
2001:49aa:111:aa00::112001:410:90ff::5yes
fd11:1111:1111::11112001:410:90ff::5yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
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::d22001:630:212:225:225:90ff:fe0c:45a6yes
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:fea2:4c5cyes
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cyes
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2604:8280:xx::/40/12027618no
2604:8280:xx::/40/11227618no
2604:8280:xx::/40/10427618no
2604:8280:xx::/40/9627618no
2604:8280:xx::/40/8827618no
2604:8280:xx::/40/8027618no
2604:8280:xx::/40/7227618no
2604:8280:xx::/40/6427618no
2604:8280:xx::/40/5627618no
2604:8280:xx::/40/4827618no
2604:8280:xx::/40/4027618no
2604:8280:80xx::/40/3227618no
2604:8200:xx::/40/2423089no
2604:280:xx::/40/166653no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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