Logo

Session Report

Summary:
Test run at: 2021-06-30 06:51:42 GMT
Client Prefix (v4): 185.4.126.x/24
Client AS (v4): 29467 (LuxNetwork)
IPv4 Probes: 66
Client Prefix (v6): 2a02:70c0:1xx::/40
Client AS (v6): 29467 (LuxNetwork)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (185.4.126.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.4.126.x/24/3129467natblock
185.4.126.x/24/3029467natblock
185.4.126.x/24/2929467natblock
185.4.126.x/24/2829467natblock
185.4.126.x/24/2729467natblock
185.4.126.x/24/2629467natblock
185.4.126.x/24/2529467natblock
185.4.126.x/24/2429467natblock
185.4.127.x/24/2329467natblock
185.4.124.x/24/2229467natblock
185.4.122.x/24/21199236natblock
185.4.118.x/24/20199455natblock
185.4.110.x/24/1928890natblock
185.4.94.x/24/1841110natblock
185.4.62.x/24/1730781natblock
185.4.254.x/24/1660372natblock
185.5.126.x/24/15202207natblock
185.6.126.x/24/1447321natblock
185.0.126.x/24/13UNROUTEDnatblock
185.12.126.x/24/1250214natblock
185.20.126.x/24/1135104natblock
185.36.126.x/24/1044654natblock
185.68.126.x/24/9UNROUTEDnatblock
185.132.126.x/24/8212369natblock

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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:70c0:1xx::/40/12029467no
2a02:70c0:1xx::/40/11229467no
2a02:70c0:1xx::/40/10429467no
2a02:70c0:1xx::/40/9629467no
2a02:70c0:1xx::/40/8829467no
2a02:70c0:1xx::/40/8029467no
2a02:70c0:1xx::/40/7229467no
2a02:70c0:1xx::/40/6429467no
2a02:70c0:1xx::/40/5629467no
2a02:70c0:1xx::/40/4829467no
2a02:70c0:1xx::/40/4029467no
2a02:70c0:81xx::/40/3229467no
2a02:7040:1xx::/40/24199236no
2a02:f0c0:1xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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