Logo

Session Report

Summary:
Test run at: 2021-08-01 07:01:40 GMT
Client Prefix (v4): 212.68.233.x/24
Client AS (v4): 12392 (ASBRUTELE)
IPv4 Probes: 66
Client Prefix (v6): 2a02:2788:4xx::/40
Client AS (v6): 12392 (ASBRUTELE)
IPv6 Probes: 56
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/72
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 (212.68.233.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.68.233.x/24/3112392rewritten
212.68.233.x/24/3012392rewritten
212.68.233.x/24/2912392rewritten
212.68.233.x/24/2812392rewritten
212.68.233.x/24/2712392rewritten
212.68.233.x/24/2612392rewritten
212.68.233.x/24/2512392rewritten
212.68.233.x/24/2412392rewritten
212.68.232.x/24/2312392rewritten
212.68.235.x/24/2212392rewritten
212.68.237.x/24/2112392rewritten
212.68.225.x/24/2012392rewritten
212.68.249.x/24/1912392rewritten
212.68.201.x/24/1812392rewritten
212.68.169.x/24/1743260rewritten
212.68.105.x/24/1612853rewritten
212.69.233.x/24/155587rewritten
212.70.233.x/24/1416141rewritten
212.64.233.x/24/1313043rewritten
212.76.233.x/24/126848rewritten
212.84.233.x/24/1120676rewritten
212.100.233.x/24/1015395rewritten
212.4.233.x/24/912665rewritten
212.196.233.x/24/8UNROUTEDrewritten

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 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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:2788:4xx::/40/12012392yes
2a02:2788:4xx::/40/11212392yes
2a02:2788:4xx::/40/10412392yes
2a02:2788:4xx::/40/9612392yes
2a02:2788:4xx::/40/8812392no
2a02:2788:4xx::/40/8012392no
2a02:2788:4xx::/40/7212392yes
2a02:2788:4xx::/40/6412392no
2a02:2788:4xx::/40/5612392no
2a02:2788:4xx::/40/4812392no
2a02:2788:4xx::/40/4012392no
2a02:2788:84xx::/40/3212392no
2a02:2708:4xx::/40/2421378no
2a02:a788:4xx::/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