Logo

Session Report

Summary:
Test run at: 2018-10-02 16:57:03 GMT
Client Prefix (v4): 213.145.115.x/24
Client AS (v4): 9070 (Cooolbox)
IPv4 Probes: 124
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none
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 (213.145.115.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.145.115.x/24/319070sendto
213.145.115.x/24/309070sendto
213.145.115.x/24/299070sendto
213.145.115.x/24/289070natblock
213.145.115.x/24/279070sendto
213.145.115.x/24/269070rewritten
213.145.115.x/24/259070rewritten
213.145.115.x/24/249070sendto
213.145.114.x/24/23207214rewritten
213.145.113.x/24/22207214rewritten
213.145.119.x/24/219070rewritten
213.145.123.x/24/209070sendto
213.145.99.x/24/199070rewritten
213.145.83.x/24/1813115sendto
213.145.51.x/24/1715934rewritten
213.145.243.x/24/1625575sendto
213.144.115.x/24/1525145rewritten
213.147.115.x/24/1435549sendto
213.149.115.x/24/138585rewritten
213.153.115.x/24/1228726rewritten
213.129.115.x/24/1115774rewritten
213.177.115.x/24/1012389sendto
213.209.115.x/24/915943rewritten
213.17.115.x/24/85390sendto

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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.
Last Modified