Logo

Session Report

Summary:
Test run at: 2023-08-31 19:34:56 GMT
Client Prefix (v4): 45.178.154.x/24
Client AS (v4): 269046
IPv4 Probes: 63
Client Prefix (v6): 2804:5ea0:40xx::/40
Client AS (v6): 269046
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/24
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 (45.178.154.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.178.154.x/24/31269046rewritten
45.178.154.x/24/30269046rewritten
45.178.154.x/24/29269046rewritten
45.178.154.x/24/28269046rewritten
45.178.154.x/24/27269046rewritten
45.178.154.x/24/26269046rewritten
45.178.154.x/24/25269046rewritten
45.178.154.x/24/24269046rewritten
45.178.155.x/24/23269046rewritten
45.178.152.x/24/22269046rewritten
45.178.158.x/24/21269027rewritten
45.178.146.x/24/20269022rewritten
45.178.138.x/24/19269021rewritten
45.178.186.x/24/1827690rewritten
45.178.218.x/24/17UNROUTEDrewritten
45.178.26.x/24/16269016rewritten
45.179.154.x/24/15267914rewritten
45.176.154.x/24/14269007rewritten
45.182.154.x/24/13269230rewritten
45.186.154.x/24/12266842rewritten
45.162.154.x/24/11263347rewritten
45.146.154.x/24/10UNROUTEDrewritten
45.242.154.x/24/924863rewritten
45.50.154.x/24/820001rewritten

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 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::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::247yes
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::1592001:610:510:115:192:42:115:98yes
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:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:5ea0:40xx::/40/120269046yes
2804:5ea0:40xx::/40/112269046yes
2804:5ea0:40xx::/40/104269046yes
2804:5ea0:40xx::/40/96269046yes
2804:5ea0:40xx::/40/88269046yes
2804:5ea0:40xx::/40/80269046yes
2804:5ea0:40xx::/40/72269046yes
2804:5ea0:40xx::/40/64269046yes
2804:5ea0:40xx::/40/56269046yes
2804:5ea0:40xx::/40/48269046yes
2804:5ea0:40xx::/40/40269046yes
2804:5ea0:c0xx::/40/32269046yes
2804:5e20:40xx::/40/24269013yes
2804:dea0:40xx::/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
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