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Session Report

Summary:
Test run at: 2021-08-21 16:36:38 GMT
Client Prefix (v4): 41.242.152.x/24
Client AS (v4): 328594 (SUDATCHAD-AS)
IPv4 Probes: 66
Client Prefix (v6): 2c0f:eb98:xx::/40
Client AS (v6): 328594 (SUDATCHAD-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length none/16

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.242.152.x/24/31328594rewritten
41.242.152.x/24/30328594rewritten
41.242.152.x/24/29328594natblock
41.242.152.x/24/28328594rewritten
41.242.152.x/24/27328594rewritten
41.242.152.x/24/26328594rewritten
41.242.152.x/24/25328594rewritten
41.242.152.x/24/24328594rewritten
41.242.153.x/24/23328594rewritten
41.242.154.x/24/22328594rewritten
41.242.156.x/24/21328594rewritten
41.242.144.x/24/20UNROUTEDrewritten
41.242.136.x/24/1937623rewritten
41.242.184.x/24/1836974rewritten
41.242.216.x/24/1737105rewritten
41.242.24.x/24/1637566rewritten
41.243.152.x/24/15UNROUTEDrewritten
41.240.152.x/24/1436998rewritten
41.246.152.x/24/1337457rewritten
41.250.152.x/24/1236903rewritten
41.226.152.x/24/1137705rewritten
41.210.152.x/24/1020294rewritten
41.178.152.x/24/924863rewritten
41.114.152.x/24/816637rewritten

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.
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 10 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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
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
2c0f:eb98:xx::/40/120328594yes
2c0f:eb98:xx::/40/112328594yes
2c0f:eb98:xx::/40/104328594yes
2c0f:eb98:xx::/40/96328594yes
2c0f:eb98:xx::/40/88328594yes
2c0f:eb98:xx::/40/80328594yes
2c0f:eb98:xx::/40/72328594yes
2c0f:eb98:xx::/40/64328594yes
2c0f:eb98:xx::/40/56328594yes
2c0f:eb98:xx::/40/48328594yes
2c0f:eb98:xx::/40/40328594yes
2c0f:eb98:80xx::/40/32328594yes
2c0f:eb18:xx::/40/24UNROUTEDyes
2c0f:6b98:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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