Logo

Session Report

Summary:
Test run at: 2021-03-22 16:59:08 GMT
Client Prefix (v4): 191.37.157.x/24
Client AS (v4): 263362
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable rewritten
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (191.37.157.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.37.157.x/24/31263362sendto
191.37.157.x/24/30263362sendto
191.37.157.x/24/29263362sendto
191.37.157.x/24/28263362sendto
191.37.157.x/24/27263362sendto
191.37.157.x/24/26263362sendto
191.37.157.x/24/25263362sendto
191.37.157.x/24/24263362sendto
191.37.156.x/24/23263362sendto
191.37.159.x/24/22263362sendto
191.37.153.x/24/21263362sendto
191.37.149.x/24/20263361sendto
191.37.141.x/24/19266387sendto
191.37.189.x/24/1861904sendto
191.37.221.x/24/17263373sendto
191.37.29.x/24/16263352sendto
191.36.157.x/24/15263333sendto
191.39.157.x/24/1453037sendto
191.33.157.x/24/1310429sendto
191.45.157.x/24/127738sendto
191.53.157.x/24/1128202sendto
191.5.157.x/24/1053085sendto
191.101.157.x/24/961317sendto
191.165.157.x/24/826615sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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