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Session Report

Summary:
Test run at: 2020-06-04 14:59:49 GMT
Client Prefix (v4): 103.2.249.x/24
Client AS (v4): 55391 (MF-NATIVE6-E)
IPv4 Probes: 75
Client Prefix (v6): 2409:11:8xx::/40
Client AS (v6): 55391 (MF-NATIVE6-E)
IPv6 Probes: 68
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/64

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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.2.249.x/24/3155391rewritten
103.2.249.x/24/3055391rewritten
103.2.249.x/24/2955391rewritten
103.2.249.x/24/2855391rewritten
103.2.249.x/24/2755391rewritten
103.2.249.x/24/2655391rewritten
103.2.249.x/24/2555391rewritten
103.2.249.x/24/2455391rewritten
103.2.248.x/24/2355391rewritten
103.2.251.x/24/2255391rewritten
103.2.253.x/24/2155392rewritten
103.2.241.x/24/20137455rewritten
103.2.233.x/24/19131210rewritten
103.2.217.x/24/18UNROUTEDrewritten
103.2.185.x/24/1745345rewritten
103.2.121.x/24/1618015rewritten
103.3.249.x/24/1556147rewritten
103.0.249.x/24/147575rewritten
103.6.249.x/24/13132204rewritten
103.10.249.x/24/12131993rewritten
103.18.249.x/24/11135602rewritten
103.34.249.x/24/10UNROUTEDrewritten
103.66.249.x/24/9UNROUTEDrewritten
103.130.249.x/24/8UNROUTEDrewritten

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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
2001:48d0:101:501::1592001:48d0:101:501::242no
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
2001:48d0:101:501::1592001:48d0:101:501::247no
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
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
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
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
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
2001:48d0:101:501::1592001:770:18:7:225:90ff:fe0c:acb4no
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
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2409:11:8xx::/40/12055391yes
2409:11:8xx::/40/11255391yes
2409:11:8xx::/40/10455391yes
2409:11:8xx::/40/9655391yes
2409:11:8xx::/40/8855391yes
2409:11:8xx::/40/8055391yes
2409:11:8xx::/40/7255391yes
2409:11:8xx::/40/6455391yes
2409:11:8xx::/40/5655391no
2409:11:8xx::/40/4855391no
2409:11:8xx::/40/4055391no
2409:11:88xx::/40/3255391no
2409:91:8xx::/40/24UNROUTEDno
2409:8011:8xx::/40/169808no

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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