Logo

Session Report

Summary:
Test run at: 2022-02-23 21:27:16 GMT
Client Prefix (v4): 45.238.85.x/24
Client AS (v4): 263327
IPv4 Probes: 60
Client Prefix (v6): 2804:145c:82xx::/40
Client AS (v6): 263327
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
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 (45.238.85.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.238.85.x/24/31263327rewritten
45.238.85.x/24/30263327rewritten
45.238.85.x/24/29263327rewritten
45.238.85.x/24/28263327rewritten
45.238.85.x/24/27263327rewritten
45.238.85.x/24/26263327rewritten
45.238.85.x/24/25263327rewritten
45.238.85.x/24/24263327rewritten
45.238.84.x/24/23263327rewritten
45.238.87.x/24/22268329rewritten
45.238.81.x/24/21UNROUTEDrewritten
45.238.93.x/24/20268320rewritten
45.238.69.x/24/19268315rewritten
45.238.117.x/24/18268323rewritten
45.238.21.x/24/17266830rewritten
45.238.213.x/24/1627730rewritten
45.239.85.x/24/15UNROUTEDrewritten
45.236.85.x/24/14268227rewritten
45.234.85.x/24/13266782rewritten
45.230.85.x/24/12UNROUTEDrewritten
45.254.85.x/24/11UNROUTEDrewritten
45.206.85.x/24/10UNROUTEDrewritten
45.174.85.x/24/928387rewritten
45.110.85.x/24/837069rewritten

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 2 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::1592001:770:1c:7:225:90ff:fe0c:acb4yes
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
2804:145c:82xx::/40/120263327yes
2804:145c:82xx::/40/112263327yes
2804:145c:82xx::/40/104263327yes
2804:145c:82xx::/40/96263327yes
2804:145c:82xx::/40/88263327yes
2804:145c:82xx::/40/80263327yes
2804:145c:82xx::/40/72263327yes
2804:145c:82xx::/40/64263327yes
2804:145c:82xx::/40/56263327yes
2804:145c:82xx::/40/48263327yes
2804:145c:82xx::/40/40263327yes
2804:145c:2xx::/40/32263327yes
2804:14dc:82xx::/40/24UNROUTEDyes
2804:945c:82xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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