Logo

Session Report

Summary:
Test run at: 2021-12-02 09:43:11 GMT
Client Prefix (v4): 67.221.244.x/24
Client AS (v4): 8038 (6CONNECT)
IPv4 Probes: 66
Client Prefix (v6): 2607:fae0:a0xx::/40
Client AS (v6): 8038 (6CONNECT)
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 /26/64

Meaning of result status in column:

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 (67.221.244.x/24) can spoof 63 neighboring addresses (within your /26 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
67.221.244.x/24/318038yes
67.221.244.x/24/308038yes
67.221.244.x/24/298038yes
67.221.244.x/24/288038yes
67.221.244.x/24/278038yes
67.221.244.x/24/268038yes
67.221.244.x/24/258038no
67.221.244.x/24/248038no
67.221.245.x/24/2315562no
67.221.246.x/24/228038no
67.221.240.x/24/218038no
67.221.252.x/24/208038no
67.221.228.x/24/1927467no
67.221.212.x/24/1862943no
67.221.180.x/24/1711403no
67.221.116.x/24/167795no
67.220.244.x/24/1516509no
67.223.244.x/24/1429873no
67.217.244.x/24/137381no
67.213.244.x/24/1230432no
67.205.244.x/24/1123089no
67.253.244.x/24/1011351no
67.157.244.x/24/91226no
67.93.244.x/24/82828no

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)

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
2607:fae0:a0xx::/40/1208038yes
2607:fae0:a0xx::/40/1128038yes
2607:fae0:a0xx::/40/1048038yes
2607:fae0:a0xx::/40/968038yes
2607:fae0:a0xx::/40/888038yes
2607:fae0:a0xx::/40/808038yes
2607:fae0:a0xx::/40/728038yes
2607:fae0:a0xx::/40/648038yes
2607:fae0:a0xx::/40/568038no
2607:fae0:a0xx::/40/488038no
2607:fae0:a0xx::/40/408038no
2607:fae0:20xx::/40/328038no
2607:fa60:a0xx::/40/24UNROUTEDno
2607:7ae0:a0xx::/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.
Last Modified