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Session Report

Summary:
Test run at: 2021-02-17 18:45:05 GMT
Client Prefix (v4): 80.200.5.x/24
Client AS (v4): 5432 (PROXIMUS-ISP-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a02:a03f:46xx::/40
Client AS (v6): 5432 (PROXIMUS-ISP-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length none/56
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.
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 (80.200.5.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
80.200.5.x/24/315432natblock
80.200.5.x/24/305432natblock
80.200.5.x/24/295432natblock
80.200.5.x/24/285432natblock
80.200.5.x/24/275432natblock
80.200.5.x/24/265432natblock
80.200.5.x/24/255432natblock
80.200.5.x/24/245432natblock
80.200.4.x/24/235432natblock
80.200.7.x/24/225432natblock
80.200.1.x/24/215432natblock
80.200.13.x/24/205432natblock
80.200.21.x/24/195432natblock
80.200.37.x/24/185432natblock
80.200.69.x/24/175432natblock
80.200.133.x/24/165432natblock
80.201.5.x/24/155432natblock
80.202.5.x/24/1415659natblock
80.204.5.x/24/1320959natblock
80.192.5.x/24/125089natblock
80.216.5.x/24/1139651natblock
80.232.5.x/24/1025400natblock
80.136.5.x/24/93320natblock
80.72.5.x/24/842622natblock

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242no
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
2001:48d0:101:501::1592001:48d0:101:501::247no
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
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
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
2001:48d0:101:501::1592001:770:18:7:225:90ff:fe0c:acb4no
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
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a02:a03f:46xx::/40/1205432yes
2a02:a03f:46xx::/40/1125432yes
2a02:a03f:46xx::/40/1045432yes
2a02:a03f:46xx::/40/965432yes
2a02:a03f:46xx::/40/885432yes
2a02:a03f:46xx::/40/805432yes
2a02:a03f:46xx::/40/725432yes
2a02:a03f:46xx::/40/645432yes
2a02:a03f:46xx::/40/565432yes
2a02:a03f:46xx::/40/485432no
2a02:a03f:46xx::/40/405432no
2a02:a03f:c6xx::/40/325432no
2a02:a0bf:46xx::/40/24UNROUTEDno
2a02:203f:46xx::/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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