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Session Report

Summary:
Test run at: 2023-05-20 23:13:29 GMT
Client Prefix (v4): 128.116.205.x/24
Client AS (v4): 35612 (NGI-AS)
IPv4 Probes: 60
Client Prefix (v6): 2a0e:97c0:3xx::/40
Client AS (v6): 198747
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (128.116.205.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
128.116.205.x/24/3135612sendto
128.116.205.x/24/3035612sendto
128.116.205.x/24/2935612sendto
128.116.205.x/24/2835612sendto
128.116.205.x/24/2735612sendto
128.116.205.x/24/2635612sendto
128.116.205.x/24/2535612sendto
128.116.205.x/24/2435612sendto
128.116.204.x/24/2335612sendto
128.116.207.x/24/2235612sendto
128.116.201.x/24/2135612sendto
128.116.197.x/24/2035612sendto
128.116.221.x/24/1935612sendto
128.116.237.x/24/1835612sendto
128.116.141.x/24/1735612sendto
128.116.77.x/24/1622697sendto
128.117.205.x/24/15194sendto
128.118.205.x/24/143999sendto
128.112.205.x/24/1388sendto
128.124.205.x/24/1221497sendto
128.100.205.x/24/11239sendto
128.84.205.x/24/1026sendto
128.52.205.x/24/93sendto
128.244.205.x/24/877sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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::1592001:770:1c: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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a0e:97c0:3xx::/40/120198747sendto
2a0e:97c0:3xx::/40/112198747sendto
2a0e:97c0:3xx::/40/104198747sendto
2a0e:97c0:3xx::/40/96198747sendto
2a0e:97c0:3xx::/40/88198747sendto
2a0e:97c0:3xx::/40/80198747sendto
2a0e:97c0:3xx::/40/72198747sendto
2a0e:97c0:3xx::/40/64198747sendto
2a0e:97c0:3xx::/40/56198747sendto
2a0e:97c0:3xx::/40/48198747sendto
2a0e:97c0:3xx::/40/40UNROUTEDsendto
2a0e:97c0:83xx::/40/32UNROUTEDsendto
2a0e:9740:3xx::/40/2451920sendto
2a0e:17c0:3xx::/40/1659668sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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