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Session Report

Summary:
Test run at: 2023-06-09 04:55:36 GMT
Client Prefix (v4): 175.45.85.x/24
Client AS (v4): 4826 (VOCUS-BACKBONE-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (175.45.85.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
175.45.85.x/24/314826natblock
175.45.85.x/24/304826natblock
175.45.85.x/24/294826yes
175.45.85.x/24/284826yes
175.45.85.x/24/274826yes
175.45.85.x/24/264826yes
175.45.85.x/24/254826yes
175.45.85.x/24/244826yes
175.45.84.x/24/234826yes
175.45.87.x/24/224826yes
175.45.81.x/24/214826yes
175.45.93.x/24/204826yes
175.45.69.x/24/194826yes
175.45.117.x/24/184826yes
175.45.21.x/24/179381yes
175.45.213.x/24/16135354yes
175.44.85.x/24/154837yes
175.47.85.x/24/1417968yes
175.41.85.x/24/134721yes
175.37.85.x/24/124804yes
175.61.85.x/24/119394yes
175.13.85.x/24/104134yes
175.109.85.x/24/92516yes
175.173.85.x/24/84837yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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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