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Session Report

Summary:
Test run at: 2024-03-13 10:31:21 GMT
Client Prefix (v4): 160.238.184.x/24
Client AS (v4): 265728
IPv4 Probes: 66
Client Prefix (v6): 2803:3c0:c0xx::/40
Client AS (v6): 265728
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16
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 (160.238.184.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
160.238.184.x/24/31265728rewritten
160.238.184.x/24/30265728rewritten
160.238.184.x/24/29265728rewritten
160.238.184.x/24/28265728rewritten
160.238.184.x/24/27265728natblock
160.238.184.x/24/26265728rewritten
160.238.184.x/24/25265728rewritten
160.238.184.x/24/24265728rewritten
160.238.185.x/24/23265728rewritten
160.238.186.x/24/22265728rewritten
160.238.188.x/24/21266642rewritten
160.238.176.x/24/20265898natblock
160.238.168.x/24/19265725rewritten
160.238.152.x/24/18262881natblock
160.238.248.x/24/17266564rewritten
160.238.56.x/24/162907rewritten
160.239.184.x/24/159366rewritten
160.236.184.x/24/14UNROUTEDrewritten
160.234.184.x/24/13UNROUTEDnatblock
160.230.184.x/24/121983rewritten
160.254.184.x/24/11UNROUTEDrewritten
160.206.184.x/24/10UNROUTEDrewritten
160.174.184.x/24/96713rewritten
160.110.184.x/24/8UNROUTEDrewritten

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 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::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::1592001:638:902:2000:ba27:ebff:fe86:2c51yes
2001:4978:1fb:6400::d22001:638:902:2000:ba27:ebff:fe86:2c51no
2001:49aa:111:aa00::112001:638:902:2000:ba27:ebff:fe86:2c51no
fd11:1111:1111::11112001:638:902:2000:ba27:ebff:fe86:2c51no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dyes
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dyes
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dyes
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14yes
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14yes
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14yes
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2803:3c0:c0xx::/40/120265728yes
2803:3c0:c0xx::/40/112265728yes
2803:3c0:c0xx::/40/104265728yes
2803:3c0:c0xx::/40/96265728yes
2803:3c0:c0xx::/40/88265728yes
2803:3c0:c0xx::/40/80265728yes
2803:3c0:c0xx::/40/72265728yes
2803:3c0:c0xx::/40/64265728yes
2803:3c0:c0xx::/40/56265728yes
2803:3c0:c0xx::/40/48265728yes
2803:3c0:c0xx::/40/40265728yes
2803:3c0:40xx::/40/32265728yes
2803:340:c0xx::/40/24264685yes
2803:83c0:c0xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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