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Session Report

Summary:
Test run at: 2017-09-21 17:14:18 GMT
Client Prefix (v4): 177.32.110.x/24
Client AS (v4): 28573
IPv4 Probes: 117
Client Prefix (v6): 2804:14c:1xx::/40
Client AS (v6): 28573
IPv6 Probes: 77
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 (177.32.110.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.32.110.x/24/3128573rewritten
177.32.110.x/24/3028573rewritten
177.32.110.x/24/2928573rewritten
177.32.110.x/24/2828573rewritten
177.32.110.x/24/2728573rewritten
177.32.110.x/24/2628573rewritten
177.32.110.x/24/2528573rewritten
177.32.110.x/24/2428573rewritten
177.32.111.x/24/2328573rewritten
177.32.108.x/24/2228573rewritten
177.32.106.x/24/2128573rewritten
177.32.102.x/24/2028573rewritten
177.32.126.x/24/1928573rewritten
177.32.78.x/24/1828573rewritten
177.32.46.x/24/1728573rewritten
177.32.238.x/24/1628573rewritten
177.33.110.x/24/1528573rewritten
177.34.110.x/24/1428573rewritten
177.36.110.x/24/1352972rewritten
177.40.110.x/24/1218881rewritten
177.48.110.x/24/1126615rewritten
177.0.110.x/24/108167rewritten
177.96.110.x/24/918881rewritten
177.160.110.x/24/826599rewritten

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
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:14c:1xx::/40/12028573yes
2804:14c:1xx::/40/11228573yes
2804:14c:1xx::/40/10428573yes
2804:14c:1xx::/40/9628573yes
2804:14c:1xx::/40/8828573yes
2804:14c:1xx::/40/8028573yes
2804:14c:1xx::/40/7228573yes
2804:14c:1xx::/40/6428573yes
2804:14c:1xx::/40/5628573no
2804:14c:1xx::/40/4828573no
2804:14c:1xx::/40/4028573no
2804:14c:81xx::/40/3228573no
2804:1cc:1xx::/40/2428130no
2804:814c:1xx::/40/16UNROUTEDno

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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