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Session Report

Summary:
Test run at: 2019-01-12 06:36:19 GMT
Client Prefix (v4): 61.245.145.x/24
Client AS (v4): 4764 (WIDEBAND-AS-AP)
IPv4 Probes: 124
Client Prefix (v6): 2403:5800:51xx::/40
Client AS (v6): 4764 (WIDEBAND-AS-AP)
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

Meaning of result status in column:

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 (61.245.145.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
61.245.145.x/24/314764natblock
61.245.145.x/24/304764natblock
61.245.145.x/24/294764natblock
61.245.145.x/24/284764natblock
61.245.145.x/24/274764natblock
61.245.145.x/24/264764natblock
61.245.145.x/24/254764natblock
61.245.145.x/24/244764natblock
61.245.144.x/24/234764natblock
61.245.147.x/24/224764natblock
61.245.149.x/24/214764natblock
61.245.153.x/24/204764natblock
61.245.129.x/24/194764natblock
61.245.177.x/24/1838673natblock
61.245.209.x/24/1710019natblock
61.245.17.x/24/1617676natblock
61.244.145.x/24/159269natblock
61.247.145.x/24/1410036natblock
61.241.145.x/24/134837natblock
61.253.145.x/24/129318natblock
61.229.145.x/24/113462natblock
61.213.145.x/24/102914natblock
61.181.145.x/24/94837natblock
61.117.145.x/24/82516natblock

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 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.

  

  
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2403:5800:51xx::/40/1204764no
2403:5800:51xx::/40/1124764no
2403:5800:51xx::/40/1044764no
2403:5800:51xx::/40/964764no
2403:5800:51xx::/40/884764no
2403:5800:51xx::/40/804764no
2403:5800:51xx::/40/724764no
2403:5800:51xx::/40/644764no
2403:5800:51xx::/40/564764no
2403:5800:51xx::/40/484764no
2403:5800:51xx::/40/404764no
2403:5800:d1xx::/40/324764no
2403:5880:51xx::/40/24UNROUTEDno
2403:d800:51xx::/40/16UNROUTEDno

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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