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Session Report

Summary:
Test run at: 2022-08-30 00:17:18 GMT
Client Prefix (v4): 179.63.252.x/24
Client AS (v4): 263686
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (179.63.252.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.63.252.x/24/31263686natblock
179.63.252.x/24/30263686natblock
179.63.252.x/24/29263686rewritten
179.63.252.x/24/28263686rewritten
179.63.252.x/24/27263686rewritten
179.63.252.x/24/26263686rewritten
179.63.252.x/24/25263686rewritten
179.63.252.x/24/24263686rewritten
179.63.253.x/24/23263686rewritten
179.63.254.x/24/22263686rewritten
179.63.248.x/24/2152438rewritten
179.63.244.x/24/2052439rewritten
179.63.236.x/24/19271439rewritten
179.63.220.x/24/18264640rewritten
179.63.188.x/24/17UNROUTEDrewritten
179.63.124.x/24/16271575rewritten
179.62.252.x/24/1527983rewritten
179.61.252.x/24/14397373rewritten
179.59.252.x/24/1328024rewritten
179.55.252.x/24/1226615rewritten
179.47.252.x/24/11UNROUTEDrewritten
179.31.252.x/24/106057natblock
179.127.252.x/24/9263645rewritten
179.191.252.x/24/8263421rewritten

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 3 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.
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