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Session Report

Summary:
Test run at: 2018-02-20 23:53:31 GMT
Client Prefix (v4): 77.234.45.x/24
Client AS (v4): 198605 (AVAST-AS-DC)
IPv4 Probes: 102
Client Prefix (v6): 2604:6000:7cxx::/40
Client AS (v6): 11351 (TWC-11351-NORTHEAST)
IPv6 Probes: 65
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (77.234.45.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
77.234.45.x/24/31198605sendto
77.234.45.x/24/30198605sendto
77.234.45.x/24/29198605sendto
77.234.45.x/24/28198605sendto
77.234.45.x/24/27198605sendto
77.234.45.x/24/26198605sendto
77.234.45.x/24/25198605sendto
77.234.45.x/24/24198605sendto
77.234.44.x/24/23198605sendto
77.234.47.x/24/22198621sendto
77.234.41.x/24/21198605sendto
77.234.37.x/24/20201291sendto
77.234.61.x/24/196830sendto
77.234.13.x/24/1812389sendto
77.234.109.x/24/1742885sendto
77.234.173.x/24/1634482sendto
77.235.45.x/24/1560781sendto
77.232.45.x/24/1428968sendto
77.238.45.x/24/131653sendto
77.226.45.x/24/1212430sendto
77.250.45.x/24/116830sendto
77.202.45.x/24/1015557sendto
77.170.45.x/24/91136sendto
77.106.45.x/24/812389sendto

Meaning of status in Received column:

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.
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2604:6000:7cxx::/40/12011351sendto
2604:6000:7cxx::/40/11211351sendto
2604:6000:7cxx::/40/10411351sendto
2604:6000:7cxx::/40/9611351sendto
2604:6000:7cxx::/40/8811351sendto
2604:6000:7cxx::/40/8011351sendto
2604:6000:7cxx::/40/7211351sendto
2604:6000:7cxx::/40/6411351sendto
2604:6000:7cxx::/40/5611351sendto
2604:6000:7cxx::/40/4811351sendto
2604:6000:7cxx::/40/4011351sendto
2604:6000:fcxx::/40/3211351sendto
2604:6080:7cxx::/40/2413739sendto
2604:e000:7cxx::/40/1627553sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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