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Session Report

Summary:
Test run at: 2021-03-03 18:32:44 GMT
Client Prefix (v4): 62.221.78.x/24
Client AS (v4): 1547 (IDK-Network)
IPv4 Probes: 69
Client Prefix (v6): 2a03:f680:fexx::/40
Client AS (v6): 1547 (IDK-Network)
IPv6 Probes: 60
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
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 (62.221.78.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
62.221.78.x/24/311547rewritten
62.221.78.x/24/301547rewritten
62.221.78.x/24/291547rewritten
62.221.78.x/24/281547rewritten
62.221.78.x/24/271547rewritten
62.221.78.x/24/261547rewritten
62.221.78.x/24/251547rewritten
62.221.78.x/24/241547rewritten
62.221.79.x/24/231547rewritten
62.221.76.x/24/221547rewritten
62.221.74.x/24/211547rewritten
62.221.70.x/24/201547rewritten
62.221.94.x/24/191547rewritten
62.221.110.x/24/181547rewritten
62.221.14.x/24/171273rewritten
62.221.206.x/24/1648635rewritten
62.220.78.x/24/1515437rewritten
62.223.78.x/24/148918rewritten
62.217.78.x/24/135408rewritten
62.213.78.x/24/12205952rewritten
62.205.78.x/24/116848rewritten
62.253.78.x/24/105089rewritten
62.157.78.x/24/93320rewritten
62.93.78.x/24/825447rewritten

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 2 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::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::1592001:630:212:225:225:90ff: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::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c: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
2a03:f680:fexx::/40/1201547yes
2a03:f680:fexx::/40/1121547yes
2a03:f680:fexx::/40/1041547yes
2a03:f680:fexx::/40/961547yes
2a03:f680:fexx::/40/881547yes
2a03:f680:fexx::/40/801547yes
2a03:f680:fexx::/40/721547yes
2a03:f680:fexx::/40/641547yes
2a03:f680:fexx::/40/561547no
2a03:f680:fexx::/40/481547no
2a03:f680:fexx::/40/401547no
2a03:f680:7exx::/40/321547no
2a03:f600:fexx::/40/24UNROUTEDno
2a03:7680:fexx::/40/1620905no

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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