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Session Report

Summary:
Test run at: 2024-05-26 12:54:02 GMT
Client Prefix (v4): 170.254.219.x/24
Client AS (v4): 264770
IPv4 Probes: 69
Client Prefix (v6): 2803:10c0:41xx::/40
Client AS (v6): 264770
IPv6 Probes: 64
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/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.

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 (170.254.219.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.254.219.x/24/31264770rewritten
170.254.219.x/24/30264770rewritten
170.254.219.x/24/29264770rewritten
170.254.219.x/24/28264770rewritten
170.254.219.x/24/27264770rewritten
170.254.219.x/24/26264770rewritten
170.254.219.x/24/25264770rewritten
170.254.219.x/24/24264770rewritten
170.254.218.x/24/23264770rewritten
170.254.217.x/24/22264770rewritten
170.254.223.x/24/2128343rewritten
170.254.211.x/24/20265116rewritten
170.254.203.x/24/19265130rewritten
170.254.251.x/24/18265385rewritten
170.254.155.x/24/17263077rewritten
170.254.91.x/24/16265524rewritten
170.255.219.x/24/15213160rewritten
170.252.219.x/24/143573rewritten
170.250.219.x/24/1323089rewritten
170.246.219.x/24/12UNROUTEDrewritten
170.238.219.x/24/1128343rewritten
170.222.219.x/24/1011577rewritten
170.190.219.x/24/933527rewritten
170.126.219.x/24/8UNROUTEDrewritten

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 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::1592001:200:e000:2:225:90ff:fe0c:4684no
2001:4978:1fb:6400::d22001:200:e000:2:225:90ff:fe0c:4684no
2001:49aa:111:aa00::112001:200:e000:2:225:90ff:fe0c:4684no
fd11:1111:1111::11112001:200:e000:2:225:90ff:fe0c:4684no
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::1592001:638:902:2000:ba27:ebff:fe86:2c51no
2001:4978:1fb:6400::d22001:638:902:2000:ba27:ebff:fe86:2c51no
2001:49aa:111:aa00::112001:638:902:2000:ba27:ebff:fe86:2c51no
fd11:1111:1111::11112001:638:902:2000:ba27:ebff:fe86:2c51no
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
2803:10c0:41xx::/40/120264770yes
2803:10c0:41xx::/40/112264770yes
2803:10c0:41xx::/40/104264770yes
2803:10c0:41xx::/40/96264770yes
2803:10c0:41xx::/40/88264770yes
2803:10c0:41xx::/40/80264770yes
2803:10c0:41xx::/40/72264770yes
2803:10c0:41xx::/40/64264770yes
2803:10c0:41xx::/40/56264770yes
2803:10c0:41xx::/40/48264770no
2803:10c0:41xx::/40/40264770no
2803:10c0:c1xx::/40/32264770no
2803:1040:41xx::/40/24263751no
2803:90c0:41xx::/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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