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Session Report

Summary:
Test run at: 2023-09-14 19:19:25 GMT
Client Prefix (v4): 177.93.80.x/24
Client AS (v4): 263142
IPv4 Probes: 69
Client Prefix (v6): 2804:1760:1xx::/40
Client AS (v6): 263142
IPv6 Probes: 60
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 (177.93.80.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.93.80.x/24/31263142rewritten
177.93.80.x/24/30263142rewritten
177.93.80.x/24/29263142rewritten
177.93.80.x/24/28263142rewritten
177.93.80.x/24/27263142rewritten
177.93.80.x/24/26263142rewritten
177.93.80.x/24/25263142rewritten
177.93.80.x/24/24263142rewritten
177.93.81.x/24/23263142rewritten
177.93.82.x/24/22263142rewritten
177.93.84.x/24/21263142rewritten
177.93.88.x/24/20262582rewritten
177.93.64.x/24/19263137rewritten
177.93.112.x/24/1852928rewritten
177.93.16.x/24/1752263rewritten
177.93.208.x/24/1653075rewritten
177.92.80.x/24/1517222rewritten
177.95.80.x/24/1427699rewritten
177.89.80.x/24/1328220rewritten
177.85.80.x/24/12266160rewritten
177.77.80.x/24/1126599rewritten
177.125.80.x/24/1028201rewritten
177.29.80.x/24/926615rewritten
177.221.80.x/24/852653rewritten

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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
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::242no
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::247no
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::1592001:770:1c: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:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:1760:1xx::/40/120263142yes
2804:1760:1xx::/40/112263142yes
2804:1760:1xx::/40/104263142yes
2804:1760:1xx::/40/96263142yes
2804:1760:1xx::/40/88263142yes
2804:1760:1xx::/40/80263142yes
2804:1760:1xx::/40/72263142yes
2804:1760:1xx::/40/64263142yes
2804:1760:1xx::/40/56263142yes
2804:1760:1xx::/40/48263142yes
2804:1760:1xx::/40/40263142yes
2804:1760:81xx::/40/32263142yes
2804:17e0:1xx::/40/24263256yes
2804:9760:1xx::/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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