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Session Report

Summary:
Test run at: 2017-08-29 17:33:52 GMT
Client Prefix (v4): 138.122.26.x/24
Client AS (v4): 263785
IPv4 Probes: 117
Client Prefix (v6): 2803:b440:xx::/40
Client AS (v6): 263785
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (138.122.26.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.122.26.x/24/31263785natblock
138.122.26.x/24/30263785natblock
138.122.26.x/24/29263785yes
138.122.26.x/24/28263785yes
138.122.26.x/24/27263785yes
138.122.26.x/24/26263785yes
138.122.26.x/24/25263785yes
138.122.26.x/24/24263785yes
138.122.27.x/24/23263785yes
138.122.24.x/24/22263785yes
138.122.30.x/24/21262468yes
138.122.18.x/24/20264306yes
138.122.10.x/24/19262404yes
138.122.58.x/24/18264327yes
138.122.90.x/24/17263077yes
138.122.154.x/24/16264321yes
138.123.26.x/24/1516657yes
138.120.26.x/24/14UNROUTEDnatblock
138.126.26.x/24/13UNROUTEDnatblock
138.114.26.x/24/12UNROUTEDnatblock
138.106.26.x/24/11202116yes
138.90.26.x/24/10UNROUTEDnatblock
138.58.26.x/24/9UNROUTEDnatblock
138.250.26.x/24/8786yes

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 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 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ayes
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:4978:1fb:6400::d22001:410:102:1::78yes
2001:49aa:111:aa00::112001:410:102:1::78yes
fd11:1111:1111::11112001:410:102:1::78yes
2001:4978:1fb:6400::d22001:410:90ff::5yes
2001:49aa:111:aa00::112001:410:90ff::5yes
fd11:1111:1111::11112001:410:90ff::5yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98yes
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6yes
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cyes
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cyes
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2803:b440:xx::/40/120263785yes
2803:b440:xx::/40/112263785yes
2803:b440:xx::/40/104263785yes
2803:b440:xx::/40/96263785yes
2803:b440:xx::/40/88263785yes
2803:b440:xx::/40/80263785yes
2803:b440:xx::/40/72263785yes
2803:b440:xx::/40/64263785yes
2803:b440:xx::/40/56263785yes
2803:b440:xx::/40/48263785yes
2803:b440:xx::/40/40263785yes
2803:b440:80xx::/40/32263785yes
2803:b4c0:xx::/40/2427919yes
2803:3440:xx::/40/16263784yes

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)
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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