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Session Report

Summary:
Test run at: 2021-09-16 22:37:10 GMT
Client Prefix (v4): 195.62.32.x/24
Client AS (v4): 207959 (XSSERVER)
IPv4 Probes: 66
Client Prefix (v6): 2a0d:c2c0:xx::/40
Client AS (v6): 44592 (SkyLink)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length /24/16

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 (195.62.32.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
195.62.32.x/24/31207959yes
195.62.32.x/24/30207959yes
195.62.32.x/24/29207959yes
195.62.32.x/24/28207959yes
195.62.32.x/24/27207959yes
195.62.32.x/24/26207959yes
195.62.32.x/24/25207959yes
195.62.32.x/24/24207959yes
195.62.33.x/24/2330823no
195.62.34.x/24/22199901no
195.62.36.x/24/21UNROUTEDno
195.62.40.x/24/2044856no
195.62.48.x/24/1944804no
195.62.0.x/24/1831738no
195.62.96.x/24/178648no
195.62.160.x/24/1631638no
195.63.32.x/24/1512312no
195.60.32.x/24/14UNROUTEDno
195.58.32.x/24/13211795no
195.54.32.x/24/1228753no
195.46.32.x/24/11196953no
195.30.32.x/24/105539no
195.126.32.x/24/9702no
195.190.32.x/24/88499no

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)

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::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
2a0d:c2c0:xx::/40/12044592yes
2a0d:c2c0:xx::/40/11244592yes
2a0d:c2c0:xx::/40/10444592yes
2a0d:c2c0:xx::/40/9644592yes
2a0d:c2c0:xx::/40/8844592yes
2a0d:c2c0:xx::/40/8044592yes
2a0d:c2c0:xx::/40/7244592yes
2a0d:c2c0:xx::/40/6444592yes
2a0d:c2c0:xx::/40/5644592yes
2a0d:c2c0:xx::/40/4844592yes
2a0d:c2c0:xx::/40/4044592yes
2a0d:c2c0:80xx::/40/3244592yes
2a0d:c240:xx::/40/24UNROUTEDyes
2a0d:42c0:xx::/40/16197706yes

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.
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