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Session Report

Summary:
Test run at: 2018-08-17 09:43:55 GMT
Client Prefix (v4): 85.218.4.x/24
Client AS (v4): 34781 (SIL-CITYCABLE-AS)
IPv4 Probes: 124
Client Prefix (v6): 2a00:f90:fxx::/40
Client AS (v6): 34781 (SIL-CITYCABLE-AS)
IPv6 Probes: 82
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/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 (85.218.4.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
85.218.4.x/24/3134781rewritten
85.218.4.x/24/3034781rewritten
85.218.4.x/24/2934781rewritten
85.218.4.x/24/2834781rewritten
85.218.4.x/24/2734781rewritten
85.218.4.x/24/2634781rewritten
85.218.4.x/24/2534781rewritten
85.218.4.x/24/2434781rewritten
85.218.5.x/24/2334781rewritten
85.218.6.x/24/2234781rewritten
85.218.0.x/24/2134781rewritten
85.218.12.x/24/2034781rewritten
85.218.20.x/24/1934781rewritten
85.218.36.x/24/1834781rewritten
85.218.68.x/24/1734781rewritten
85.218.132.x/24/16197288rewritten
85.219.4.x/24/156739rewritten
85.216.4.x/24/1429562rewritten
85.222.4.x/24/136830rewritten
85.210.4.x/24/129105rewritten
85.202.4.x/24/1143031rewritten
85.250.4.x/24/101680rewritten
85.154.4.x/24/928885rewritten
85.90.4.x/24/839440rewritten

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 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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:388:1:5001:21c:c0ff:fea2:4a3ayes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:410:102:1::78yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:48d0:101:501::242yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:48d0:101:501::247yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:610:510:115:192:42:115:98yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:630:212:225:225:90ff:fe0c:45a6yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:708:40:2001:21c:c0ff:fea2:4c5cyes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:770:18:7:225:90ff:fe0c:acb4yes
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
2001:48d0:101:501:ec4:7aff:fea8:71a82001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:48d0:101:501:ec4:7aff:fea8:71a82607:f278:2:13:ba27:ebff:fe3f:b21eyes
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
2a00:f90:fxx::/40/12034781yes
2a00:f90:fxx::/40/11234781yes
2a00:f90:fxx::/40/10434781yes
2a00:f90:fxx::/40/9634781yes
2a00:f90:fxx::/40/8834781yes
2a00:f90:fxx::/40/8034781yes
2a00:f90:fxx::/40/7234781yes
2a00:f90:fxx::/40/6434781yes
2a00:f90:fxx::/40/5634781yes
2a00:f90:fxx::/40/4834781yes
2a00:f90:fxx::/40/4034781yes
2a00:f90:8fxx::/40/3234781yes
2a00:f10:fxx::/40/2448635yes
2a00:8f90:fxx::/40/16UNROUTEDyes

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:
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