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Session Report

Summary:
Test run at: 2023-05-19 20:06:42 GMT
Client Prefix (v4): 177.23.168.x/24
Client AS (v4): 52913
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /29
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 (177.23.168.x/24) can spoof 7 neighboring addresses (within your /29 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.23.168.x/24/3152913yes
177.23.168.x/24/3052913yes
177.23.168.x/24/2952913yes
177.23.168.x/24/2852913natblock
177.23.168.x/24/2752913natblock
177.23.168.x/24/2652913natblock
177.23.168.x/24/2552913natblock
177.23.168.x/24/2452913natblock
177.23.169.x/24/2352913natblock
177.23.170.x/24/2252913natblock
177.23.172.x/24/2152913natblock
177.23.160.x/24/2052960natblock
177.23.184.x/24/1952935natblock
177.23.136.x/24/1852699natblock
177.23.232.x/24/1752938natblock
177.23.40.x/24/16263038natblock
177.22.168.x/24/15262459natblock
177.21.168.x/24/14262876natblock
177.19.168.x/24/1318881natblock
177.31.168.x/24/1226615natblock
177.7.168.x/24/118167natblock
177.55.168.x/24/10262507natblock
177.87.168.x/24/952583natblock
177.151.168.x/24/826615natblock

Meaning of status in Received column:

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 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.
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