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Session Report

Summary:
Test run at: 2017-05-27 11:58:14 GMT
Client Prefix (v4): 185.23.224.x/24
Client AS (v4): 15943 (WTNET-AS)
IPv4 Probes: 131
Client Prefix (v6): 2a02:2028:8xx::/40
Client AS (v6): 15943 (WTNET-AS)
IPv6 Probes: 78
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
Largest spoofable neighbor prefix length none/64
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 (185.23.224.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.23.224.x/24/3115943rewritten
185.23.224.x/24/3015943rewritten
185.23.224.x/24/2915943rewritten
185.23.224.x/24/2815943rewritten
185.23.224.x/24/2715943rewritten
185.23.224.x/24/2615943rewritten
185.23.224.x/24/2515943rewritten
185.23.224.x/24/2415943rewritten
185.23.225.x/24/2315943rewritten
185.23.226.x/24/2215943rewritten
185.23.228.x/24/2138984rewritten
185.23.232.x/24/20UNROUTEDrewritten
185.23.240.x/24/19UNROUTEDrewritten
185.23.192.x/24/1834977rewritten
185.23.160.x/24/175538rewritten
185.23.96.x/24/1629286rewritten
185.22.224.x/24/1560962rewritten
185.21.224.x/24/1460683rewritten
185.19.224.x/24/1325540rewritten
185.31.224.x/24/1225180rewritten
185.7.224.x/24/1132780rewritten
185.55.224.x/24/10201999rewritten
185.87.224.x/24/912843rewritten
185.151.224.x/24/8UNROUTEDrewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78no
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
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:45a6no
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:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:2028:8xx::/40/12015943yes
2a02:2028:8xx::/40/11215943yes
2a02:2028:8xx::/40/10415943yes
2a02:2028:8xx::/40/9615943yes
2a02:2028:8xx::/40/8815943yes
2a02:2028:8xx::/40/8015943yes
2a02:2028:8xx::/40/7215943yes
2a02:2028:8xx::/40/6415943yes
2a02:2028:8xx::/40/5615943no
2a02:2028:8xx::/40/4815943no
2a02:2028:8xx::/40/4015943no
2a02:2028:88xx::/40/3215943no
2a02:20a8:8xx::/40/2424989no
2a02:a028:8xx::/40/165432no

Meaning of status in Received column:

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