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Session Report

Summary:
Test run at: 2021-10-18 22:37:55 GMT
Client Prefix (v4): 87.121.75.x/24
Client AS (v4): 134697 (LAUNTEL-AS-AP)
IPv4 Probes: 66
Client Prefix (v6): 2404:e80:81xx::/40
Client AS (v6): 134697 (LAUNTEL-AS-AP)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownreceived
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.
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 (87.121.75.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
87.121.75.x/24/31134697natblock
87.121.75.x/24/30134697natblock
87.121.75.x/24/29134697natblock
87.121.75.x/24/28134697natblock
87.121.75.x/24/27134697natblock
87.121.75.x/24/26134697natblock
87.121.75.x/24/25134697natblock
87.121.75.x/24/24134697natblock
87.121.74.x/24/23134697natblock
87.121.73.x/24/22134697natblock
87.121.79.x/24/2134224natblock
87.121.67.x/24/2029030natblock
87.121.91.x/24/1934224natblock
87.121.107.x/24/1815504natblock
87.121.11.x/24/1729030natblock
87.121.203.x/24/1621413natblock
87.120.75.x/24/1543561natblock
87.123.75.x/24/148881natblock
87.125.75.x/24/1312430natblock
87.113.75.x/24/126871natblock
87.105.75.x/24/1112741natblock
87.89.75.x/24/105410natblock
87.57.75.x/24/93292natblock
87.249.75.x/24/815641natblock

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.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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::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:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2404:e80:81xx::/40/120134697yes
2404:e80:81xx::/40/112134697yes
2404:e80:81xx::/40/104134697yes
2404:e80:81xx::/40/96134697yes
2404:e80:81xx::/40/88134697yes
2404:e80:81xx::/40/80134697yes
2404:e80:81xx::/40/72134697yes
2404:e80:81xx::/40/64134697yes
2404:e80:81xx::/40/56134697yes
2404:e80:81xx::/40/48134697yes
2404:e80:81xx::/40/40134697yes
2404:e80:1xx::/40/32134697yes
2404:e00:81xx::/40/24UNROUTEDyes
2404:8e80:81xx::/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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