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Session Report

Summary:
Test run at: 2019-11-12 07:46:15 GMT
Client Prefix (v4): 91.192.7.x/24
Client AS (v4): 203735 (Capacities-LTD)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (91.192.7.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.192.7.x/24/31203735yes
91.192.7.x/24/30203735yes
91.192.7.x/24/29203735yes
91.192.7.x/24/28203735yes
91.192.7.x/24/27203735yes
91.192.7.x/24/26203735yes
91.192.7.x/24/25203735yes
91.192.7.x/24/24203735yes
91.192.6.x/24/23UNROUTEDyes
91.192.5.x/24/22UNROUTEDyes
91.192.3.x/24/2142261yes
91.192.15.x/24/2042274yes
91.192.23.x/24/1942291yes
91.192.39.x/24/1839704yes
91.192.71.x/24/1742377yes
91.192.135.x/24/1634579yes
91.193.7.x/24/1560233yes
91.194.7.x/24/14UNROUTEDnatblock
91.196.7.x/24/13UNROUTEDnatblock
91.200.7.x/24/1243748yes
91.208.7.x/24/111764yes
91.224.7.x/24/1050812yes
91.128.7.x/24/91257yes
91.64.7.x/24/831334yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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