Logo

Session Report

Summary:
Test run at: 2017-10-16 23:23:40 GMT
Client Prefix (v4): 131.243.19.x/24
Client AS (v4): 16 (LBL)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /22
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 (131.243.19.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
131.243.19.x/24/3116yes
131.243.19.x/24/3016yes
131.243.19.x/24/2916yes
131.243.19.x/24/2816yes
131.243.19.x/24/2716yes
131.243.19.x/24/2616yes
131.243.19.x/24/2516yes
131.243.19.x/24/2416yes
131.243.18.x/24/2316yes
131.243.17.x/24/2216yes
131.243.23.x/24/2116no
131.243.27.x/24/2016no
131.243.3.x/24/1916no
131.243.51.x/24/1816no
131.243.83.x/24/1716no
131.243.147.x/24/1616no
131.242.19.x/24/159650no
131.241.19.x/24/143549no
131.247.19.x/24/135661no
131.251.19.x/24/12786no
131.227.19.x/24/11786no
131.211.19.x/24/101103no
131.179.19.x/24/952no
131.115.19.x/24/81729no

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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