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Session Report

Summary:
Test run at: 2019-02-21 21:16:07 GMT
Client Prefix (v4): 198.108.63.x/24
Client AS (v4): 237 (MERIT-AS-14)
IPv4 Probes: 116
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /23

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 (198.108.63.x/24) can spoof 511 neighboring addresses (within your /23 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.108.63.x/24/31237yes
198.108.63.x/24/30237yes
198.108.63.x/24/29237yes
198.108.63.x/24/28237yes
198.108.63.x/24/27237yes
198.108.63.x/24/26237yes
198.108.63.x/24/25237yes
198.108.63.x/24/24237no
198.108.62.x/24/23237yes
198.108.61.x/24/22237no
198.108.59.x/24/21237no
198.108.55.x/24/20237no
198.108.47.x/24/19237no
198.108.31.x/24/18237no
198.108.127.x/24/17237no
198.108.191.x/24/16237no
198.109.63.x/24/15237no
198.110.63.x/24/14237no
198.104.63.x/24/132914no
198.100.63.x/24/1240197no
198.124.63.x/24/11291no
198.76.63.x/24/103356no
198.44.63.x/24/954290no
198.236.63.x/24/836416no

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 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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