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Session Report

Summary:
Test run at: 2021-09-26 04:28:18 GMT
Client Prefix (v4): 158.51.125.x/24
Client AS (v4): 399804 (HOSTODO)
IPv4 Probes: 66
Client Prefix (v6): 2606:65c0:xx::/40
Client AS (v6): 399804 (HOSTODO)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16

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 Adjacent Netblock Testing:

Your host (158.51.125.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
158.51.125.x/24/31399804yes
158.51.125.x/24/30399804yes
158.51.125.x/24/29399804yes
158.51.125.x/24/28399804yes
158.51.125.x/24/27399804yes
158.51.125.x/24/26399804yes
158.51.125.x/24/25399804yes
158.51.125.x/24/24399804yes
158.51.124.x/24/2320150yes
158.51.127.x/24/2220150yes
158.51.121.x/24/2162563yes
158.51.117.x/24/2020220yes
158.51.109.x/24/1954600yes
158.51.93.x/24/18399203yes
158.51.61.x/24/1747002yes
158.51.253.x/24/1653812yes
158.50.125.x/24/15UNROUTEDno
158.49.125.x/24/14766yes
158.55.125.x/24/13UNROUTEDno
158.59.125.x/24/1225807yes
158.35.125.x/24/117018yes
158.19.125.x/24/101600yes
158.115.125.x/24/9UNROUTEDno
158.179.125.x/24/839550yes

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 probes:
Spoofed source addressDestinationReceived
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
2606:65c0:xx::/40/120399804yes
2606:65c0:xx::/40/112399804yes
2606:65c0:xx::/40/104399804yes
2606:65c0:xx::/40/96399804yes
2606:65c0:xx::/40/88399804yes
2606:65c0:xx::/40/80399804yes
2606:65c0:xx::/40/72399804yes
2606:65c0:xx::/40/64399804yes
2606:65c0:xx::/40/56399804yes
2606:65c0:xx::/40/48399804yes
2606:65c0:xx::/40/40UNROUTEDyes
2606:65c0:80xx::/40/32UNROUTEDyes
2606:6540:xx::/40/24UNROUTEDyes
2606:e5c0:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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