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Session Report

Summary:
Test run at: 2024-06-17 19:18:30 GMT
Client Prefix (v4): 164.132.56.x/24
Client AS (v4): 16276 (OVH)
IPv4 Probes: 69
Client Prefix (v6): 2001:41d0:4xx::/40
Client AS (v6): 16276 (OVH)
IPv6 Probes: 64
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length none/32
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 (164.132.56.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
164.132.56.x/24/3116276no
164.132.56.x/24/3016276no
164.132.56.x/24/2916276no
164.132.56.x/24/2816276no
164.132.56.x/24/2716276no
164.132.56.x/24/2616276no
164.132.56.x/24/2516276no
164.132.56.x/24/2416276no
164.132.57.x/24/2316276no
164.132.58.x/24/2216276no
164.132.60.x/24/2116276no
164.132.48.x/24/2016276no
164.132.40.x/24/1916276no
164.132.24.x/24/1816276no
164.132.120.x/24/1716276no
164.132.184.x/24/1616276no
164.133.56.x/24/15UNROUTEDno
164.134.56.x/24/14UNROUTEDno
164.128.56.x/24/133303no
164.140.56.x/24/1215916no
164.148.56.x/24/1137130no
164.164.56.x/24/107633no
164.196.56.x/24/9UNROUTEDno
164.4.56.x/24/844013no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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::1592001:200:e000:2:225:90ff:fe0c:4684no
2001:4978:1fb:6400::d22001:200:e000:2:225:90ff:fe0c:4684no
2001:49aa:111:aa00::112001:200:e000:2:225:90ff:fe0c:4684no
fd11:1111:1111::11112001:200:e000:2:225:90ff:fe0c:4684no
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
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dno
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dno
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dno
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14no
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14no
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14no
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:41d0:4xx::/40/12016276yes
2001:41d0:4xx::/40/11216276yes
2001:41d0:4xx::/40/10416276yes
2001:41d0:4xx::/40/9616276yes
2001:41d0:4xx::/40/8816276yes
2001:41d0:4xx::/40/8016276yes
2001:41d0:4xx::/40/7216276yes
2001:41d0:4xx::/40/6416276yes
2001:41d0:4xx::/40/5616276yes
2001:41d0:4xx::/40/4816276yes
2001:41d0:4xx::/40/4016276yes
2001:41d0:84xx::/40/3216276yes
2001:4150:4xx::/40/245539no
2001:c1d0:4xx::/40/16UNROUTEDno

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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