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Session Report

Summary:
Test run at: 2022-05-18 12:33:47 GMT
Client Prefix (v4): 158.247.193.x/24
Client AS (v4): 20473 (AS-CHOOPA)
IPv4 Probes: 60
Client Prefix (v6): 2401:c080:1cxx::/40
Client AS (v6): 20473 (AS-CHOOPA)
IPv6 Probes: 56
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/64
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 (158.247.193.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
158.247.193.x/24/3120473no
158.247.193.x/24/3020473no
158.247.193.x/24/2920473no
158.247.193.x/24/2820473no
158.247.193.x/24/2720473no
158.247.193.x/24/2620473no
158.247.193.x/24/2520473no
158.247.193.x/24/2420473no
158.247.192.x/24/2320473no
158.247.195.x/24/2220473no
158.247.197.x/24/2120473no
158.247.201.x/24/2020473no
158.247.209.x/24/1920473no
158.247.225.x/24/1820473no
158.247.129.x/24/1726133no
158.247.65.x/24/16UNROUTEDno
158.246.193.x/24/15749no
158.245.193.x/24/14637no
158.243.193.x/24/13637no
158.255.193.x/24/1257507no
158.231.193.x/24/11UNROUTEDno
158.215.193.x/24/102907no
158.183.193.x/24/9UNROUTEDno
158.119.193.x/24/8UNROUTEDno

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::1592001:48d0:101:501::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
2401:c080:1cxx::/40/12020473yes
2401:c080:1cxx::/40/11220473yes
2401:c080:1cxx::/40/10420473yes
2401:c080:1cxx::/40/9620473yes
2401:c080:1cxx::/40/8820473yes
2401:c080:1cxx::/40/8020473yes
2401:c080:1cxx::/40/7220473yes
2401:c080:1cxx::/40/6420473yes
2401:c080:1cxx::/40/5620473no
2401:c080:1cxx::/40/4820473no
2401:c080:1cxx::/40/4020473no
2401:c080:9cxx::/40/32UNROUTEDno
2401:c000:1cxx::/40/2424323no
2401:4080:1cxx::/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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