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Session Report

Summary:
Test run at: 2022-06-11 03:26:05 GMT
Client Prefix (v4): 24.136.56.x/24
Client AS (v4): 22773 (ASN-CXA-ALL-CCI-22773-RDC)
IPv4 Probes: 60
Client Prefix (v6): 2600:8807:c1xx::/40
Client AS (v6): 22773 (ASN-CXA-ALL-CCI-22773-RDC)
IPv6 Probes: 56
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
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 (24.136.56.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
24.136.56.x/24/3122773rewritten
24.136.56.x/24/3022773rewritten
24.136.56.x/24/2922773rewritten
24.136.56.x/24/2822773rewritten
24.136.56.x/24/2722773rewritten
24.136.56.x/24/2622773rewritten
24.136.56.x/24/2522773rewritten
24.136.56.x/24/2422773rewritten
24.136.57.x/24/2322773rewritten
24.136.58.x/24/2222773rewritten
24.136.60.x/24/2122773rewritten
24.136.48.x/24/2022773rewritten
24.136.40.x/24/1922773rewritten
24.136.24.x/24/186079rewritten
24.136.120.x/24/1712271rewritten
24.136.184.x/24/167029rewritten
24.137.56.x/24/15812rewritten
24.138.56.x/24/1411260rewritten
24.140.56.x/24/1312097rewritten
24.128.56.x/24/127922rewritten
24.152.56.x/24/11269991rewritten
24.168.56.x/24/1012271rewritten
24.200.56.x/24/95769rewritten
24.8.56.x/24/87922rewritten

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
2600:8807:c1xx::/40/12022773yes
2600:8807:c1xx::/40/11222773yes
2600:8807:c1xx::/40/10422773yes
2600:8807:c1xx::/40/9622773yes
2600:8807:c1xx::/40/8822773yes
2600:8807:c1xx::/40/8022773yes
2600:8807:c1xx::/40/7222773yes
2600:8807:c1xx::/40/6422773yes
2600:8807:c1xx::/40/5622773no
2600:8807:c1xx::/40/4822773no
2600:8807:c1xx::/40/4022773no
2600:8807:41xx::/40/3222773no
2600:8887:c1xx::/40/24UNROUTEDno
2600:807:c1xx::/40/16701no

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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