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Session Report

Summary:
Test run at: 2017-07-19 10:05:35 GMT
Client Prefix (v4): 124.149.134.x/24
Client AS (v4): 4739 (INTERNODE-AS)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /15
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 (124.149.134.x/24) can spoof 131071 neighboring addresses (within your /15 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
124.149.134.x/24/314739yes
124.149.134.x/24/304739yes
124.149.134.x/24/294739yes
124.149.134.x/24/284739yes
124.149.134.x/24/274739yes
124.149.134.x/24/264739yes
124.149.134.x/24/254739yes
124.149.134.x/24/244739yes
124.149.135.x/24/234739yes
124.149.132.x/24/224739yes
124.149.130.x/24/214739yes
124.149.142.x/24/204739yes
124.149.150.x/24/194739yes
124.149.166.x/24/184739yes
124.149.198.x/24/174802yes
124.149.6.x/24/169543yes
124.148.134.x/24/154739yes
124.151.134.x/24/149812natblock
124.145.134.x/24/139824natblock
124.157.134.x/24/12UNROUTEDnatblock
124.133.134.x/24/114837natblock
124.181.134.x/24/101221natblock
124.213.134.x/24/92516natblock
124.21.134.x/24/8UNROUTEDnatblock

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 7 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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