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Session Report

Summary:
Test run at: 2024-04-19 09:46:17 GMT
Client Prefix (v4): 213.174.228.x/24
Client AS (v4): 28760 (INFOTECH-AT-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a03:fa00:4xx::/40
Client AS (v6): 28760 (INFOTECH-AT-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
Largest spoofable neighbor prefix length nonenone
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 (213.174.228.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.174.228.x/24/3128760natblock
213.174.228.x/24/3028760natblock
213.174.228.x/24/2928760natblock
213.174.228.x/24/2828760natblock
213.174.228.x/24/2728760natblock
213.174.228.x/24/2628760natblock
213.174.228.x/24/2528760natblock
213.174.228.x/24/2428760natblock
213.174.229.x/24/2328760natblock
213.174.230.x/24/2228760natblock
213.174.224.x/24/2128760natblock
213.174.236.x/24/2028760natblock
213.174.244.x/24/1928760natblock
213.174.196.x/24/183561natblock
213.174.164.x/24/1721309natblock
213.174.100.x/24/1629283natblock
213.175.228.x/24/1528780natblock
213.172.228.x/24/143212natblock
213.170.228.x/24/1329119natblock
213.166.228.x/24/1229008natblock
213.190.228.x/24/1128900natblock
213.142.228.x/24/1044993natblock
213.238.228.x/24/92119natblock
213.46.228.x/24/86830natblock

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 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::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::1592001:610:510:115:192:42:115:98no
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
2001:48d0:101:501::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::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dno
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dno
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dno
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14no
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14no
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14no
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a03:fa00:4xx::/40/12028760no
2a03:fa00:4xx::/40/11228760no
2a03:fa00:4xx::/40/10428760no
2a03:fa00:4xx::/40/9628760no
2a03:fa00:4xx::/40/8828760no
2a03:fa00:4xx::/40/8028760no
2a03:fa00:4xx::/40/7228760no
2a03:fa00:4xx::/40/6428760no
2a03:fa00:4xx::/40/5628760no
2a03:fa00:4xx::/40/4828760no
2a03:fa00:4xx::/40/4028760no
2a03:fa00:84xx::/40/3228760no
2a03:fa80:4xx::/40/2415471no
2a03:7a00:4xx::/40/1642908no

Meaning of status in Received column:

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