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Session Report

Summary:
Test run at: 2017-04-10 06:02:26 GMT
Client Prefix (v4): 203.119.42.x/24
Client AS (v4): 4608 (APNIC-SERVICES)
IPv4 Probes: 90
Client Prefix (v6): 2001:dc0:a0xx::/40
Client AS (v6): 4608 (APNIC-SERVICES)
IPv6 Probes: 78
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 /24none
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 (203.119.42.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.119.42.x/24/314608yes
203.119.42.x/24/304608yes
203.119.42.x/24/294608yes
203.119.42.x/24/284608yes
203.119.42.x/24/274608yes
203.119.42.x/24/264608yes
203.119.42.x/24/254608yes
203.119.42.x/24/244608yes
203.119.43.x/24/23UNROUTEDno
203.119.40.x/24/2224252no
203.119.46.x/24/2124089no
203.119.34.x/24/20UNROUTEDno
203.119.58.x/24/19UNROUTEDno
203.119.10.x/24/1823902no
203.119.106.x/24/174608no
203.119.170.x/24/16UNROUTEDno
203.118.42.x/24/154657no
203.117.42.x/24/144657no
203.115.42.x/24/1317904no
203.127.42.x/24/123758no
203.103.42.x/24/11703no
203.87.42.x/24/107545no
203.55.42.x/24/94739no
203.247.42.x/24/89775no

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 (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 1 IP hop(s).
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::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:dc0:a0xx::/40/1204608no
2001:dc0:a0xx::/40/1124608no
2001:dc0:a0xx::/40/1044608no
2001:dc0:a0xx::/40/964608no
2001:dc0:a0xx::/40/884608no
2001:dc0:a0xx::/40/804608no
2001:dc0:a0xx::/40/724608no
2001:dc0:a0xx::/40/644608no
2001:dc0:a0xx::/40/564608no
2001:dc0:a0xx::/40/484608no
2001:dc0:a0xx::/40/404608no
2001:dc0:20xx::/40/324608no
2001:d40:a0xx::/40/24UNROUTEDno
2001:8dc0:a0xx::/40/161221no

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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