Logo

Session Report

Summary:
Test run at: 2022-04-18 10:34:26 GMT
Client Prefix (v4): 141.98.255.x/24
Client AS (v4): 39351 (ESAB-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
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 (141.98.255.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
141.98.255.x/24/3139351sendto
141.98.255.x/24/3039351sendto
141.98.255.x/24/2939351sendto
141.98.255.x/24/2839351sendto
141.98.255.x/24/2739351sendto
141.98.255.x/24/2639351sendto
141.98.255.x/24/2539351sendto
141.98.255.x/24/2439351sendto
141.98.254.x/24/2339351sendto
141.98.253.x/24/22UNROUTEDsendto
141.98.251.x/24/2157389sendto
141.98.247.x/24/20213207sendto
141.98.239.x/24/1934244sendto
141.98.223.x/24/1834993sendto
141.98.191.x/24/1718978sendto
141.98.127.x/24/16209591sendto
141.99.255.x/24/15680sendto
141.96.255.x/24/1425367sendto
141.102.255.x/24/13UNROUTEDsendto
141.106.255.x/24/1233503sendto
141.114.255.x/24/11557sendto
141.66.255.x/24/1013040sendto
141.34.255.x/24/91754sendto
141.226.255.x/24/848851sendto

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