Logo

Session Report

Summary:
Test run at: 2021-09-12 18:54:15 GMT
Client Prefix (v4): 165.16.208.x/24
Client AS (v4): 37721 (Virtual-Technologies-Solutions-SA)
IPv4 Probes: 66
Client Prefix (v6): 2c0f:ee00:xx::/40
Client AS (v6): 37721 (Virtual-Technologies-Solutions-SA)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /21/112

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.
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 (165.16.208.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
165.16.208.x/24/3137721yes
165.16.208.x/24/3037721yes
165.16.208.x/24/2937721yes
165.16.208.x/24/2837721yes
165.16.208.x/24/2737721yes
165.16.208.x/24/2637721yes
165.16.208.x/24/2537721no
165.16.208.x/24/2437721yes
165.16.209.x/24/2337721no
165.16.210.x/24/2237721no
165.16.212.x/24/2137721yes
165.16.216.x/24/2037721no
165.16.192.x/24/19327792no
165.16.240.x/24/18327808no
165.16.144.x/24/1737314no
165.16.80.x/24/1637284no
165.17.208.x/24/15UNROUTEDno
165.18.208.x/24/14UNROUTEDno
165.20.208.x/24/13UNROUTEDno
165.24.208.x/24/12394917no
165.0.208.x/24/1137053no
165.48.208.x/24/10UNROUTEDno
165.80.208.x/24/9UNROUTEDno
165.144.208.x/24/85713no

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)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 3 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
2c0f:ee00:xx::/40/12037721yes
2c0f:ee00:xx::/40/11237721yes
2c0f:ee00:xx::/40/10437721no
2c0f:ee00:xx::/40/9637721no
2c0f:ee00:xx::/40/8837721no
2c0f:ee00:xx::/40/8037721no
2c0f:ee00:xx::/40/7237721no
2c0f:ee00:xx::/40/6437721no
2c0f:ee00:xx::/40/5637721no
2c0f:ee00:xx::/40/4837721no
2c0f:ee00:xx::/40/40UNROUTEDno
2c0f:ee00:80xx::/40/32UNROUTEDno
2c0f:ee80:xx::/40/24UNROUTEDno
2c0f:6e00: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.
Last Modified