Logo

Session Report

Summary:
Test run at: 2022-05-20 20:48:16 GMT
Client Prefix (v4): 45.239.4.x/24
Client AS (v4): 268349
IPv4 Probes: 60
Client Prefix (v6): 2804:4fc8:baxx::/40
Client AS (v6): 268349
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 (45.239.4.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.239.4.x/24/31268349natblock
45.239.4.x/24/30268349natblock
45.239.4.x/24/29268349natblock
45.239.4.x/24/28268349natblock
45.239.4.x/24/27268349natblock
45.239.4.x/24/26268349natblock
45.239.4.x/24/25268349natblock
45.239.4.x/24/24268349natblock
45.239.5.x/24/23268349natblock
45.239.6.x/24/22268349natblock
45.239.0.x/24/21UNROUTEDnatblock
45.239.12.x/24/20268346natblock
45.239.20.x/24/19268352natblock
45.239.36.x/24/18266871natblock
45.239.68.x/24/1728539natblock
45.239.132.x/24/16268366natblock
45.238.4.x/24/15268308natblock
45.237.4.x/24/14268292natblock
45.235.4.x/24/13267391natblock
45.231.4.x/24/12267215natblock
45.255.4.x/24/11UNROUTEDnatblock
45.207.4.x/24/10UNROUTEDnatblock
45.175.4.x/24/9268872natblock
45.111.4.x/24/837069natblock

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 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::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
2804:4fc8:baxx::/40/120268349yes
2804:4fc8:baxx::/40/112268349yes
2804:4fc8:baxx::/40/104268349yes
2804:4fc8:baxx::/40/96268349yes
2804:4fc8:baxx::/40/88268349yes
2804:4fc8:baxx::/40/80268349yes
2804:4fc8:baxx::/40/72268349yes
2804:4fc8:baxx::/40/64268349yes
2804:4fc8:baxx::/40/56268349yes
2804:4fc8:baxx::/40/48268349yes
2804:4fc8:baxx::/40/40268349yes
2804:4fc8:3axx::/40/32268349yes
2804:4f48:baxx::/40/24268317no
2804:cfc8:baxx::/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