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Session Report

Summary:
Test run at: 2018-11-14 12:44:13 GMT
Client Prefix (v4): 149.157.192.x/24
Client AS (v4): 1213 (HEANET)
IPv4 Probes: 124
Client Prefix (v6): 2001:770:xx::/40
Client AS (v6): 1213 (HEANET)
IPv6 Probes: 82
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 (149.157.192.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
149.157.192.x/24/311213natblock
149.157.192.x/24/301213natblock
149.157.192.x/24/291213natblock
149.157.192.x/24/281213natblock
149.157.192.x/24/271213natblock
149.157.192.x/24/261213natblock
149.157.192.x/24/251213natblock
149.157.192.x/24/241213natblock
149.157.193.x/24/231213natblock
149.157.194.x/24/221213natblock
149.157.196.x/24/211213natblock
149.157.200.x/24/201213natblock
149.157.208.x/24/191213natblock
149.157.224.x/24/181213natblock
149.157.128.x/24/171213natblock
149.157.64.x/24/161213natblock
149.156.192.x/24/158267natblock
149.159.192.x/24/1427198natblock
149.153.192.x/24/131213natblock
149.149.192.x/24/1219331natblock
149.141.192.x/24/11UNROUTEDnatblock
149.189.192.x/24/102535natblock
149.221.192.x/24/99175natblock
149.29.192.x/24/8174natblock

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.

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
2001:770:xx::/40/1201213no
2001:770:xx::/40/1121213no
2001:770:xx::/40/1041213no
2001:770:xx::/40/961213no
2001:770:xx::/40/881213no
2001:770:xx::/40/801213no
2001:770:xx::/40/721213no
2001:770:xx::/40/641213no
2001:770:xx::/40/561213no
2001:770:xx::/40/481213no
2001:770:xx::/40/401213no
2001:770:80xx::/40/321213no
2001:7f0:xx::/40/2413237no
2001:8770:xx::/40/161221no

Meaning of status in Received column:

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