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Session Report

Summary:
Test run at: 2023-09-18 14:36:33 GMT
Client Prefix (v4): 177.70.16.x/24
Client AS (v4): 28209
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /19
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.
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 (177.70.16.x/24) can spoof 8191 neighboring addresses (within your /19 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.70.16.x/24/3128209yes
177.70.16.x/24/3028209yes
177.70.16.x/24/2928209yes
177.70.16.x/24/2828209yes
177.70.16.x/24/2728209yes
177.70.16.x/24/2628209yes
177.70.16.x/24/2528209yes
177.70.16.x/24/2428209yes
177.70.17.x/24/2328209yes
177.70.18.x/24/2228209yes
177.70.20.x/24/2128209yes
177.70.24.x/24/2028209yes
177.70.0.x/24/1928209yes
177.70.48.x/24/18262533no
177.70.80.x/24/1728241no
177.70.144.x/24/16262813no
177.71.16.x/24/1528254no
177.68.16.x/24/1427699no
177.66.16.x/24/13UNROUTEDno
177.78.16.x/24/1226599no
177.86.16.x/24/11262620no
177.102.16.x/24/1027699no
177.6.16.x/24/98167no
177.198.16.x/24/826599no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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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