Logo

Session Report

Summary:
Test run at: 2022-09-26 11:33:41 GMT
Client Prefix (v4): 168.195.215.x/24
Client AS (v4): 265438
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (168.195.215.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
168.195.215.x/24/31265438natblock
168.195.215.x/24/30265438natblock
168.195.215.x/24/29265438rewritten
168.195.215.x/24/28265438rewritten
168.195.215.x/24/27265438rewritten
168.195.215.x/24/26265438rewritten
168.195.215.x/24/25265438rewritten
168.195.215.x/24/24265438rewritten
168.195.214.x/24/23265438rewritten
168.195.213.x/24/22265438rewritten
168.195.211.x/24/21265432rewritten
168.195.223.x/24/20263421rewritten
168.195.199.x/24/19265428rewritten
168.195.247.x/24/18263943rewritten
168.195.151.x/24/17264432rewritten
168.195.87.x/24/16262794rewritten
168.194.215.x/24/15265409rewritten
168.193.215.x/24/14UNROUTEDrewritten
168.199.215.x/24/13UNROUTEDrewritten
168.203.215.x/24/12UNROUTEDrewritten
168.211.215.x/24/11UNROUTEDrewritten
168.227.215.x/24/10264888rewritten
168.131.215.x/24/910197rewritten
168.67.215.x/24/8UNROUTEDrewritten

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.
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 able to spoof routable, non-adjacent source addresses through the first 9 IP hop(s).
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