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Session Report

Summary:
Test run at: 2024-11-20 20:46:53 GMT
Client Prefix (v4): 198.178.10.x/24
Client AS (v4): 7922 (COMCAST-7922)
IPv4 Probes: 69
Client Prefix (v6): 2600:100e:b0xx::/40
Client AS (v6): 6167 (CELLCO-PART)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
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 (198.178.10.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.178.10.x/24/317922natblock
198.178.10.x/24/307922natblock
198.178.10.x/24/297922natblock
198.178.10.x/24/287922natblock
198.178.10.x/24/277922natblock
198.178.10.x/24/267922natblock
198.178.10.x/24/257922natblock
198.178.10.x/24/247922natblock
198.178.11.x/24/237922natblock
198.178.8.x/24/227922natblock
198.178.14.x/24/217922natblock
198.178.2.x/24/20UNROUTEDnatblock
198.178.26.x/24/197029natblock
198.178.42.x/24/183762natblock
198.178.74.x/24/17395321natblock
198.178.138.x/24/16UNROUTEDnatblock
198.179.10.x/24/1530098natblock
198.176.10.x/24/14UNROUTEDnatblock
198.182.10.x/24/13UNROUTEDnatblock
198.186.10.x/24/1210392natblock
198.162.10.x/24/11UNROUTEDnatblock
198.146.10.x/24/1019957natblock
198.242.10.x/24/9174natblock
198.50.10.x/24/8UNROUTEDnatblock

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::1592001:40b0:7500:280::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::1592001:770:1c: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
2600:100e:b0xx::/40/1206167yes
2600:100e:b0xx::/40/1126167yes
2600:100e:b0xx::/40/1046167yes
2600:100e:b0xx::/40/966167yes
2600:100e:b0xx::/40/886167yes
2600:100e:b0xx::/40/806167yes
2600:100e:b0xx::/40/726167yes
2600:100e:b0xx::/40/646167yes
2600:100e:b0xx::/40/566167no
2600:100e:b0xx::/40/486167no
2600:100e:b0xx::/40/406167no
2600:100e:30xx::/40/3222394no
2600:108e:b0xx::/40/24UNROUTEDno
2600:900e:b0xx::/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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