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Session Report

Summary:
Test run at: 2017-02-10 04:26:06 GMT
Client Prefix (v4): 222.165.135.x/24
Client AS (v4): 9329 (SLTINT-AS-AP)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

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 (222.165.135.x/24) can spoof 7 neighboring addresses (within your /29 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
222.165.135.x/24/319329rewritten
222.165.135.x/24/309329yes
222.165.135.x/24/299329yes
222.165.135.x/24/289329rewritten
222.165.135.x/24/279329rewritten
222.165.135.x/24/269329rewritten
222.165.135.x/24/259329rewritten
222.165.135.x/24/249329rewritten
222.165.134.x/24/239329rewritten
222.165.133.x/24/229329rewritten
222.165.131.x/24/219329rewritten
222.165.143.x/24/209329rewritten
222.165.151.x/24/199329rewritten
222.165.167.x/24/189329rewritten
222.165.199.x/24/1724207rewritten
222.165.7.x/24/1610091rewritten
222.164.135.x/24/1555430rewritten
222.167.135.x/24/149908rewritten
222.161.135.x/24/134837rewritten
222.173.135.x/24/124134rewritten
222.181.135.x/24/114134rewritten
222.133.135.x/24/104837rewritten
222.229.135.x/24/92519rewritten
222.37.135.x/24/89394rewritten

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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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