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Session Report

Summary:
Test run at: 2019-02-02 12:15:54 GMT
Client Prefix (v4): 177.8.56.x/24
Client AS (v4): 262591
IPv4 Probes: 120
Client Prefix (v6): 2804:f04:10xx::/40
Client AS (v6): 262591
IPv6 Probes: 78
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
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.
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 (177.8.56.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.8.56.x/24/31262591natblock
177.8.56.x/24/30262591natblock
177.8.56.x/24/29262591natblock
177.8.56.x/24/28262591natblock
177.8.56.x/24/27262591natblock
177.8.56.x/24/26262591natblock
177.8.56.x/24/25262591natblock
177.8.56.x/24/24262591natblock
177.8.57.x/24/23262591natblock
177.8.58.x/24/22262591natblock
177.8.60.x/24/21262591natblock
177.8.48.x/24/20262493natblock
177.8.40.x/24/19262830natblock
177.8.24.x/24/1828360natblock
177.8.120.x/24/17263028natblock
177.8.184.x/24/1653233natblock
177.9.56.x/24/1527699natblock
177.10.56.x/24/14262847natblock
177.12.56.x/24/1328665natblock
177.0.56.x/24/128167natblock
177.24.56.x/24/1126599natblock
177.40.56.x/24/1018881natblock
177.72.56.x/24/952815natblock
177.136.56.x/24/852871natblock

Meaning of status in Received column:

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 1 IP hop(s).
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:fea8:71a82001:48d0:101:501::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: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:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
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:b21eyes
fd11:1111:1111::11112607:f278:2:13:ba27:ebff:fe3f:b21eyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:f04:10xx::/40/120262591yes
2804:f04:10xx::/40/112262591yes
2804:f04:10xx::/40/104262591yes
2804:f04:10xx::/40/96262591yes
2804:f04:10xx::/40/88262591yes
2804:f04:10xx::/40/80262591yes
2804:f04:10xx::/40/72262591yes
2804:f04:10xx::/40/64262591yes
2804:f04:10xx::/40/56262591yes
2804:f04:10xx::/40/48262591yes
2804:f04:10xx::/40/40262591yes
2804:f04:90xx::/40/32262591yes
2804:f84:10xx::/40/24263589yes
2804:8f04:10xx::/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:
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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