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Session Report

Summary:
Test run at: 2016-05-26 14:59:12 GMT
Client Prefix (v4): 94.20.133.x/24
Client AS (v4): 34170 (AS-AZTELEKOM)
IPv4 Probes: 89
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 Adjacent Netblock Testing:

Your host (94.20.133.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
94.20.133.x/24/3134170rewritten
94.20.133.x/24/3034170rewritten
94.20.133.x/24/2934170rewritten
94.20.133.x/24/2834170rewritten
94.20.133.x/24/2734170rewritten
94.20.133.x/24/2634170rewritten
94.20.133.x/24/2534170rewritten
94.20.133.x/24/2434170rewritten
94.20.132.x/24/2334170rewritten
94.20.135.x/24/2234170rewritten
94.20.129.x/24/2134170rewritten
94.20.141.x/24/20198448rewritten
94.20.149.x/24/1929049rewritten
94.20.165.x/24/1829049rewritten
94.20.197.x/24/1729049rewritten
94.20.5.x/24/16UNROUTEDrewritten
94.21.133.x/24/1520845rewritten
94.22.133.x/24/1415527rewritten
94.16.133.x/24/1315600rewritten
94.28.133.x/24/128675rewritten
94.4.133.x/24/115607rewritten
94.52.133.x/24/1048161rewritten
94.84.133.x/24/93269rewritten
94.148.133.x/24/89158rewritten

Meaning of status in Received column:

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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