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Session Report

Summary:
Test run at: 2021-01-16 14:33:21 GMT
Client Prefix (v4): 138.118.35.x/24
Client AS (v4): 264247
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8

Meaning of result status in column:

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 (138.118.35.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.118.35.x/24/31264247yes
138.118.35.x/24/30264247yes
138.118.35.x/24/29264247yes
138.118.35.x/24/28264247yes
138.118.35.x/24/27264247yes
138.118.35.x/24/26264247yes
138.118.35.x/24/25264247yes
138.118.35.x/24/24264247yes
138.118.34.x/24/23264247yes
138.118.33.x/24/22264247yes
138.118.39.x/24/2152308yes
138.118.43.x/24/20264259yes
138.118.51.x/24/1952431yes
138.118.3.x/24/18264255yes
138.118.99.x/24/17264253yes
138.118.163.x/24/1628638yes
138.119.35.x/24/15611yes
138.116.35.x/24/1433004yes
138.114.35.x/24/13UNROUTEDno
138.126.35.x/24/12UNROUTEDno
138.102.35.x/24/112200yes
138.86.35.x/24/1015295yes
138.54.35.x/24/9UNROUTEDno
138.246.35.x/24/812816yes

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
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 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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