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Session Report

Summary:
Test run at: 2017-10-12 09:39:16 GMT
Client Prefix (v4): 203.217.168.x/24
Client AS (v4): 131207 (SINET-KH)
IPv4 Probes: 105
Client Prefix (v6): 2404:b300:xx::/40
Client AS (v6): 131207 (SINET-KH)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (203.217.168.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.217.168.x/24/31131207yes
203.217.168.x/24/30131207yes
203.217.168.x/24/29131207yes
203.217.168.x/24/28131207yes
203.217.168.x/24/27131207yes
203.217.168.x/24/26131207yes
203.217.168.x/24/25131207yes
203.217.168.x/24/24131207yes
203.217.169.x/24/23131207yes
203.217.170.x/24/22131207yes
203.217.172.x/24/2145711yes
203.217.160.x/24/2045827yes
203.217.184.x/24/199255yes
203.217.136.x/24/1845813yes
203.217.232.x/24/179764yes
203.217.40.x/24/164739yes
203.216.168.x/24/1538661yes
203.219.168.x/24/147545yes
203.221.168.x/24/139942yes
203.209.168.x/24/127604yes
203.201.168.x/24/11UNROUTEDyes
203.249.168.x/24/1017593yes
203.153.168.x/24/97654yes
203.89.168.x/24/89889yes

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 10 IP hop(s).
IPv6 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.

  

  
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::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
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
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6yes
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cyes
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cyes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2404:b300:xx::/40/120131207yes
2404:b300:xx::/40/112131207yes
2404:b300:xx::/40/104131207yes
2404:b300:xx::/40/96131207yes
2404:b300:xx::/40/88131207yes
2404:b300:xx::/40/80131207yes
2404:b300:xx::/40/72131207yes
2404:b300:xx::/40/64131207yes
2404:b300:xx::/40/56131207yes
2404:b300:xx::/40/48131207yes
2404:b300:xx::/40/40UNROUTEDyes
2404:b300:80xx::/40/32UNROUTEDyes
2404:b380:xx::/40/24UNROUTEDyes
2404:3300:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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