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Session Report

Summary:
Test run at: 2021-01-27 22:05:38 GMT
Client Prefix (v4): 174.193.203.x/24
Client AS (v4): 22394 (CELLCO)
IPv4 Probes: 66
Client Prefix (v6): 2600:1012:b0xx::/40
Client AS (v6): 22394 (CELLCO)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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.

Warnings:

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 (174.193.203.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
174.193.203.x/24/3122394sendto
174.193.203.x/24/3022394sendto
174.193.203.x/24/2922394sendto
174.193.203.x/24/2822394sendto
174.193.203.x/24/2722394sendto
174.193.203.x/24/2622394sendto
174.193.203.x/24/2522394sendto
174.193.203.x/24/2422394sendto
174.193.202.x/24/2322394sendto
174.193.201.x/24/2222394sendto
174.193.207.x/24/2122394sendto
174.193.195.x/24/2022394sendto
174.193.219.x/24/1922394sendto
174.193.235.x/24/1822394sendto
174.193.139.x/24/1722394sendto
174.193.75.x/24/1622394sendto
174.192.203.x/24/156167sendto
174.195.203.x/24/1422394sendto
174.197.203.x/24/1322394sendto
174.201.203.x/24/126167sendto
174.209.203.x/24/116167sendto
174.225.203.x/24/1022394sendto
174.129.203.x/24/914618sendto
174.65.203.x/24/822773sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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 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::1592001:630:212:225:225:90ff: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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2600:1012:b0xx::/40/12022394sendto
2600:1012:b0xx::/40/11222394sendto
2600:1012:b0xx::/40/10422394sendto
2600:1012:b0xx::/40/9622394sendto
2600:1012:b0xx::/40/8822394sendto
2600:1012:b0xx::/40/8022394sendto
2600:1012:b0xx::/40/7222394sendto
2600:1012:b0xx::/40/6422394sendto
2600:1012:b0xx::/40/5622394sendto
2600:1012:b0xx::/40/4822394sendto
2600:1012:b0xx::/40/4022394sendto
2600:1012:30xx::/40/3222394sendto
2600:1092:b0xx::/40/24UNROUTEDsendto
2600:9012:b0xx::/40/16UNROUTEDsendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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