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Session Report

Summary:
Test run at: 2018-06-04 09:36:13 GMT
Client Prefix (v4): 91.193.65.x/24
Client AS (v4): 42936 (SPX)
IPv4 Probes: 99
Client Prefix (v6): 2001:67c:13xx::/40
Client AS (v6): 42936 (SPX)
IPv6 Probes: 65
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16

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 (91.193.65.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.193.65.x/24/3142936yes
91.193.65.x/24/3042936yes
91.193.65.x/24/2942936yes
91.193.65.x/24/2842936yes
91.193.65.x/24/2742936yes
91.193.65.x/24/2642936yes
91.193.65.x/24/2542936yes
91.193.65.x/24/2442936yes
91.193.64.x/24/2342936yes
91.193.67.x/24/2242936yes
91.193.69.x/24/2142727yes
91.193.73.x/24/20198884yes
91.193.81.x/24/1942723yes
91.193.97.x/24/1833951yes
91.193.1.x/24/1749788yes
91.193.193.x/24/16UNROUTEDnatblock
91.192.65.x/24/1541329yes
91.195.65.x/24/1442707yes
91.197.65.x/24/1335025yes
91.201.65.x/24/1256630yes
91.209.65.x/24/1139264yes
91.225.65.x/24/1031683yes
91.129.65.x/24/91257yes
91.65.65.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).
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:acb4no
2001:4978:1fb:6400::d22607:f278:2:13:ba27:ebff:fe3f:b21eyes
2001:49aa:111:aa00::112607:f278:2:13:ba27:ebff:fe3f:b21eno
fd11:1111:1111::11112607:f278:2:13:ba27:ebff:fe3f:b21eno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:67c:13xx::/40/12042936yes
2001:67c:13xx::/40/11242936yes
2001:67c:13xx::/40/10442936yes
2001:67c:13xx::/40/9642936yes
2001:67c:13xx::/40/8842936yes
2001:67c:13xx::/40/8042936yes
2001:67c:13xx::/40/7242936yes
2001:67c:13xx::/40/6442936yes
2001:67c:13xx::/40/5642936yes
2001:67c:13xx::/40/4842936yes
2001:67c:13xx::/40/402485yes
2001:67c:93xx::/40/32UNROUTEDyes
2001:6fc:13xx::/40/24UNROUTEDyes
2001:867c:13xx::/40/161221yes

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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