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Session Report

Summary:
Test run at: 2021-04-11 18:49:05 GMT
Client Prefix (v4): 160.242.18.x/24
Client AS (v4): 33763 (Paratus-Telecom)
IPv4 Probes: 66
Client Prefix (v6): 2c0f:f980:54xx::/40
Client AS (v6): 33763 (Paratus-Telecom)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
160.242.18.x/24/3133763natblock
160.242.18.x/24/3033763natblock
160.242.18.x/24/2933763rewritten
160.242.18.x/24/2833763rewritten
160.242.18.x/24/2733763rewritten
160.242.18.x/24/2633763rewritten
160.242.18.x/24/2533763rewritten
160.242.18.x/24/2433763rewritten
160.242.19.x/24/2333763rewritten
160.242.16.x/24/2233763rewritten
160.242.22.x/24/2133763rewritten
160.242.26.x/24/20UNROUTEDrewritten
160.242.2.x/24/1933763rewritten
160.242.50.x/24/1833763rewritten
160.242.82.x/24/1733763rewritten
160.242.146.x/24/1637122rewritten
160.243.18.x/24/15UNROUTEDrewritten
160.240.18.x/24/14UNROUTEDrewritten
160.246.18.x/24/137687rewritten
160.250.18.x/24/12UNROUTEDrewritten
160.226.18.x/24/1137472rewritten
160.210.18.x/24/1015474rewritten
160.178.18.x/24/936903rewritten
160.114.18.x/24/86711rewritten

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.
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
2001:48d0:101:501::1592001:48d0:101:501::242yes
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
2001:48d0:101:501::1592001:48d0:101:501::247yes
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
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6yes
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::1592001:770:1c:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
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
2c0f:f980:54xx::/40/12033763yes
2c0f:f980:54xx::/40/11233763yes
2c0f:f980:54xx::/40/10433763yes
2c0f:f980:54xx::/40/9633763yes
2c0f:f980:54xx::/40/8833763yes
2c0f:f980:54xx::/40/8033763yes
2c0f:f980:54xx::/40/7233763yes
2c0f:f980:54xx::/40/6433763yes
2c0f:f980:54xx::/40/5633763yes
2c0f:f980:54xx::/40/4833763yes
2c0f:f980:54xx::/40/4033763yes
2c0f:f980:d4xx::/40/3233763yes
2c0f:f900:54xx::/40/2436864yes
2c0f:7980:54xx::/40/16UNROUTEDyes

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)
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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