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Session Report

Summary:
Test run at: 2016-10-24 15:42:58 GMT
Client Prefix (v4): 193.0.27.x/24
Client AS (v4): 2121 (RIPE-MEETING-AS)
IPv4 Probes: 105
Client Prefix (v6): 2001:67c:xx::/40
Client AS (v6): 2121 (RIPE-MEETING-AS)
IPv6 Probes: 72
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 (193.0.27.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.0.27.x/24/312121no
193.0.27.x/24/302121no
193.0.27.x/24/292121no
193.0.27.x/24/282121no
193.0.27.x/24/272121no
193.0.27.x/24/262121no
193.0.27.x/24/252121no
193.0.27.x/24/242121no
193.0.26.x/24/232121no
193.0.25.x/24/222121no
193.0.31.x/24/212121no
193.0.19.x/24/203333no
193.0.11.x/24/193333no
193.0.59.x/24/1825111no
193.0.91.x/24/178890no
193.0.155.x/24/16198758no
193.1.27.x/24/151213no
193.2.27.x/24/142107no
193.4.27.x/24/1312969no
193.8.27.x/24/1221222no
193.16.27.x/24/11UNROUTEDno
193.32.27.x/24/10UNROUTEDno
193.64.27.x/24/9790no
193.128.27.x/24/8702no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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