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Session Report

Summary:
Test run at: 2017-06-13 06:00:37 GMT
Client Prefix (v4): 118.106.135.x/24
Client AS (v4): 18126 (CTCX)
IPv4 Probes: 119
Client Prefix (v6): 2402:6b00:3cxx::/40
Client AS (v6): 18126 (CTCX)
IPv6 Probes: 78
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
Largest spoofable neighbor prefix length none/56
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 (118.106.135.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
118.106.135.x/24/3118126rewritten
118.106.135.x/24/3018126rewritten
118.106.135.x/24/2918126rewritten
118.106.135.x/24/2818126rewritten
118.106.135.x/24/2718126rewritten
118.106.135.x/24/2618126rewritten
118.106.135.x/24/2518126rewritten
118.106.135.x/24/2418126rewritten
118.106.134.x/24/2318126rewritten
118.106.133.x/24/2218126rewritten
118.106.131.x/24/2118126rewritten
118.106.143.x/24/2018126rewritten
118.106.151.x/24/1918126rewritten
118.106.167.x/24/1818126rewritten
118.106.199.x/24/1718126rewritten
118.106.7.x/24/1618126rewritten
118.107.135.x/24/1538193rewritten
118.104.135.x/24/1418126rewritten
118.110.135.x/24/132518rewritten
118.98.135.x/24/12UNROUTEDrewritten
118.122.135.x/24/114134rewritten
118.74.135.x/24/104837rewritten
118.42.135.x/24/94766rewritten
118.234.135.x/24/84766rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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 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:fea2:4a3ano
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::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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2402:6b00:3cxx::/40/12018126yes
2402:6b00:3cxx::/40/11218126yes
2402:6b00:3cxx::/40/10418126yes
2402:6b00:3cxx::/40/9618126yes
2402:6b00:3cxx::/40/8818126yes
2402:6b00:3cxx::/40/8018126yes
2402:6b00:3cxx::/40/7218126yes
2402:6b00:3cxx::/40/6418126yes
2402:6b00:3cxx::/40/5618126yes
2402:6b00:3cxx::/40/4818126no
2402:6b00:3cxx::/40/4018126no
2402:6b00:bcxx::/40/3218126no
2402:6b80:3cxx::/40/24UNROUTEDno
2402:eb00:3cxx::/40/16UNROUTEDno

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)
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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