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Session Report

Summary:
Test run at: 2022-01-15 00:50:43 GMT
Client Prefix (v4): 24.107.157.x/24
Client AS (v4): 20115 (CHARTER-20115)
IPv4 Probes: 63
Client Prefix (v6): 2600:6c40:4cxx::/40
Client AS (v6): 20115 (CHARTER-20115)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
Largest spoofable neighbor prefix length none/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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
24.107.157.x/24/3120115rewritten
24.107.157.x/24/3020115rewritten
24.107.157.x/24/2920115rewritten
24.107.157.x/24/2820115rewritten
24.107.157.x/24/2720115rewritten
24.107.157.x/24/2620115rewritten
24.107.157.x/24/2520115rewritten
24.107.157.x/24/2420115rewritten
24.107.156.x/24/2320115rewritten
24.107.159.x/24/2220115rewritten
24.107.153.x/24/2120115rewritten
24.107.149.x/24/2020115rewritten
24.107.141.x/24/1920115rewritten
24.107.189.x/24/1820115rewritten
24.107.221.x/24/1720115rewritten
24.107.29.x/24/1620115rewritten
24.106.157.x/24/1533363rewritten
24.105.157.x/24/1412271rewritten
24.111.157.x/24/1311232rewritten
24.99.157.x/24/127922rewritten
24.123.157.x/24/1110796rewritten
24.75.157.x/24/1026801rewritten
24.43.157.x/24/920001rewritten
24.235.157.x/24/87992rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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
2600:6c40:4cxx::/40/12020115yes
2600:6c40:4cxx::/40/11220115yes
2600:6c40:4cxx::/40/10420115yes
2600:6c40:4cxx::/40/9620115yes
2600:6c40:4cxx::/40/8820115yes
2600:6c40:4cxx::/40/8020115yes
2600:6c40:4cxx::/40/7220115yes
2600:6c40:4cxx::/40/6420115yes
2600:6c40:4cxx::/40/5620115no
2600:6c40:4cxx::/40/4820115no
2600:6c40:4cxx::/40/4020115no
2600:6c40:ccxx::/40/3220115no
2600:6cc0:4cxx::/40/24UNROUTEDno
2600:ec40:4cxx::/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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