Logo

Session Report

Summary:
Test run at: 2023-05-08 09:36:02 GMT
Client Prefix (v4): 23.147.120.x/24
Client AS (v4): 202400
IPv4 Probes: 60
Client Prefix (v6): 2a12:dd47:81xx::/40
Client AS (v6): 201445
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (23.147.120.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
23.147.120.x/24/31202400yes
23.147.120.x/24/30202400yes
23.147.120.x/24/29202400yes
23.147.120.x/24/28202400yes
23.147.120.x/24/27202400yes
23.147.120.x/24/26202400yes
23.147.120.x/24/25202400yes
23.147.120.x/24/24202400yes
23.147.121.x/24/23UNROUTEDno
23.147.122.x/24/22UNROUTEDno
23.147.124.x/24/21UNROUTEDno
23.147.112.x/24/20398013yes
23.147.104.x/24/19398998yes
23.147.88.x/24/18UNROUTEDno
23.147.56.x/24/17UNROUTEDno
23.147.248.x/24/16UNROUTEDno
23.146.120.x/24/1522961yes
23.145.120.x/24/1426042yes
23.151.120.x/24/1325862no
23.155.120.x/24/12UNROUTEDno
23.131.120.x/24/1120055yes
23.179.120.x/24/10UNROUTEDno
23.211.120.x/24/920940yes
23.19.120.x/24/827411yes

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
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
2001:48d0:101:501::1592001:48d0:101:501::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::1592001:48d0:101:501::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::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a12:dd47:81xx::/40/120201445yes
2a12:dd47:81xx::/40/112201445yes
2a12:dd47:81xx::/40/104201445yes
2a12:dd47:81xx::/40/96201445yes
2a12:dd47:81xx::/40/88201445yes
2a12:dd47:81xx::/40/80201445yes
2a12:dd47:81xx::/40/72201445yes
2a12:dd47:81xx::/40/64201445yes
2a12:dd47:81xx::/40/56201445yes
2a12:dd47:81xx::/40/48201445yes
2a12:dd47:81xx::/40/40203577yes
2a12:dd47:1xx::/40/3250058yes
2a12:ddc7:81xx::/40/24UNROUTEDyes
2a12:5d47:81xx::/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.
Last Modified