Logo

Session Report

Summary:
Test run at: 2023-05-26 16:00:56 GMT
Client Prefix (v4): 186.193.226.x/24
Client AS (v4): 262731
IPv4 Probes: 60
Client Prefix (v6): 2804:8b20:1xx::/40
Client AS (v6): 273713
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/40
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 (186.193.226.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.193.226.x/24/31262731rewritten
186.193.226.x/24/30262731rewritten
186.193.226.x/24/29262731rewritten
186.193.226.x/24/28262731rewritten
186.193.226.x/24/27262731rewritten
186.193.226.x/24/26262731rewritten
186.193.226.x/24/25262731rewritten
186.193.226.x/24/24262731rewritten
186.193.227.x/24/23262731rewritten
186.193.224.x/24/22262731rewritten
186.193.230.x/24/21262731rewritten
186.193.234.x/24/20262731rewritten
186.193.242.x/24/1928260rewritten
186.193.194.x/24/18262730rewritten
186.193.162.x/24/1753137rewritten
186.193.98.x/24/1653059rewritten
186.192.226.x/24/1528145rewritten
186.195.226.x/24/1452862rewritten
186.197.226.x/24/1326615rewritten
186.201.226.x/24/1210429rewritten
186.209.226.x/24/1153154rewritten
186.225.226.x/24/1053175rewritten
186.129.226.x/24/922927rewritten
186.65.226.x/24/827680rewritten

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::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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
2804:8b20:1xx::/40/120273713yes
2804:8b20:1xx::/40/112273713yes
2804:8b20:1xx::/40/104273713yes
2804:8b20:1xx::/40/96273713yes
2804:8b20:1xx::/40/88273713yes
2804:8b20:1xx::/40/80273713yes
2804:8b20:1xx::/40/72273713yes
2804:8b20:1xx::/40/64273713yes
2804:8b20:1xx::/40/56273713yes
2804:8b20:1xx::/40/48273713yes
2804:8b20:1xx::/40/40273713yes
2804:8b20:81xx::/40/32273713no
2804:8ba0:1xx::/40/24UNROUTEDno
2804:b20:1xx::/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.
Last Modified