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Session Report

Summary:
Test run at: 2020-07-20 16:03:52 GMT
Client Prefix (v4): 177.85.146.x/24
Client AS (v4): 53045
IPv4 Probes: 75
Client Prefix (v6): 2804:6d4:10xx::/40
Client AS (v6): 53045
IPv6 Probes: 68
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
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 (177.85.146.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.85.146.x/24/3153045rewritten
177.85.146.x/24/3053045rewritten
177.85.146.x/24/2953045rewritten
177.85.146.x/24/2853045rewritten
177.85.146.x/24/2753045rewritten
177.85.146.x/24/2653045rewritten
177.85.146.x/24/2553045rewritten
177.85.146.x/24/2453045rewritten
177.85.147.x/24/2353045rewritten
177.85.144.x/24/2253045rewritten
177.85.150.x/24/2153045rewritten
177.85.154.x/24/2052555rewritten
177.85.130.x/24/19262608rewritten
177.85.178.x/24/18262611rewritten
177.85.210.x/24/1752848rewritten
177.85.18.x/24/1653043rewritten
177.84.146.x/24/15262587rewritten
177.87.146.x/24/1452859rewritten
177.81.146.x/24/1328573rewritten
177.93.146.x/24/1252861rewritten
177.69.146.x/24/1116735rewritten
177.117.146.x/24/1026599rewritten
177.21.146.x/24/952836rewritten
177.213.146.x/24/826599rewritten

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
2001:48d0:101:501::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::1592001:610:510:115:192:42:115:98yes
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: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::1592001:770:18:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4yes
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:6d4:10xx::/40/12053045yes
2804:6d4:10xx::/40/11253045yes
2804:6d4:10xx::/40/10453045yes
2804:6d4:10xx::/40/9653045yes
2804:6d4:10xx::/40/8853045yes
2804:6d4:10xx::/40/8053045yes
2804:6d4:10xx::/40/7253045yes
2804:6d4:10xx::/40/6453045yes
2804:6d4:10xx::/40/5653045yes
2804:6d4:10xx::/40/4853045yes
2804:6d4:10xx::/40/4053045yes
2804:6d4:90xx::/40/3253045yes
2804:654:10xx::/40/24UNROUTEDyes
2804:86d4:10xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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