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Session Report

Summary:
Test run at: 2021-11-12 09:42:23 GMT
Client Prefix (v4): 185.82.168.x/24
Client AS (v4): 31638 (ASN-LEPIDA)
IPv4 Probes: 66
Client Prefix (v6): 2a02:20d8:xx::/40
Client AS (v6): 31638 (ASN-LEPIDA)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
Largest spoofable neighbor prefix length none/32
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.
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 (185.82.168.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.82.168.x/24/3131638natblock
185.82.168.x/24/3031638natblock
185.82.168.x/24/2931638natblock
185.82.168.x/24/2831638natblock
185.82.168.x/24/2731638natblock
185.82.168.x/24/2631638natblock
185.82.168.x/24/2531638natblock
185.82.168.x/24/2431638natblock
185.82.169.x/24/2331638natblock
185.82.170.x/24/2231638natblock
185.82.172.x/24/2156430natblock
185.82.160.x/24/203257natblock
185.82.184.x/24/19UNROUTEDnatblock
185.82.136.x/24/18201194natblock
185.82.232.x/24/1742120natblock
185.82.40.x/24/1643243natblock
185.83.168.x/24/1551048natblock
185.80.168.x/24/1457154natblock
185.86.168.x/24/13201085natblock
185.90.168.x/24/1260999natblock
185.66.168.x/24/11UNROUTEDnatblock
185.114.168.x/24/1049956natblock
185.18.168.x/24/960718natblock
185.210.168.x/24/861317natblock

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.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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
2a02:20d8:xx::/40/12031638yes
2a02:20d8:xx::/40/11231638yes
2a02:20d8:xx::/40/10431638yes
2a02:20d8:xx::/40/9631638yes
2a02:20d8:xx::/40/8831638yes
2a02:20d8:xx::/40/8031638yes
2a02:20d8:xx::/40/7231638yes
2a02:20d8:xx::/40/6431638yes
2a02:20d8:xx::/40/5631638yes
2a02:20d8:xx::/40/4831638yes
2a02:20d8:xx::/40/4031638yes
2a02:20d8:80xx::/40/3231638yes
2a02:2058:xx::/40/2444512no
2a02:a0d8:xx::/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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