Logo

Session Report

Summary:
Test run at: 2018-06-12 12:23:01 GMT
Client Prefix (v4): 116.251.187.x/24
Client AS (v4): 55850 (TRUSTPOWERLTD-AS-AP)
IPv4 Probes: 99
Client Prefix (v6): 2406:5a00:e0xx::/40
Client AS (v6): 55850 (TRUSTPOWERLTD-AS-AP)
IPv6 Probes: 65
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
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.
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 (116.251.187.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.251.187.x/24/31UNROUTEDnatblock
116.251.187.x/24/30UNROUTEDsendto
116.251.187.x/24/29UNROUTEDsendto
116.251.187.x/24/28UNROUTEDsendto
116.251.187.x/24/27UNROUTEDsendto
116.251.187.x/24/26UNROUTEDsendto
116.251.187.x/24/25UNROUTEDsendto
116.251.187.x/24/24UNROUTEDsendto
116.251.186.x/24/23UNROUTEDsendto
116.251.185.x/24/22UNROUTEDsendto
116.251.191.x/24/21UNROUTEDsendto
116.251.179.x/24/20UNROUTEDsendto
116.251.171.x/24/19UNROUTEDsendto
116.251.155.x/24/18UNROUTEDsendto
116.251.251.x/24/17UNROUTEDsendto
116.251.59.x/24/16UNROUTEDsendto
116.250.187.x/24/15UNROUTEDsendto
116.249.187.x/24/14UNROUTEDnatblock
116.255.187.x/24/13UNROUTEDsendto
116.243.187.x/24/12UNROUTEDsendto
116.235.187.x/24/11UNROUTEDsendto
116.219.187.x/24/10UNROUTEDsendto
116.187.187.x/24/9UNROUTEDnatblock
116.123.187.x/24/8UNROUTEDsendto

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78no
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
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
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb: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
2001:4978:1fb: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
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22607:f278:2:13:ba27:ebff:fe3f:b21eno
2001:49aa:111:aa00::112607:f278:2:13:ba27:ebff:fe3f:b21eno
fd11:1111:1111::11112607:f278:2:13:ba27:ebff:fe3f:b21eno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2406:5a00:e0xx::/40/12055850yes
2406:5a00:e0xx::/40/11255850yes
2406:5a00:e0xx::/40/10455850yes
2406:5a00:e0xx::/40/9655850yes
2406:5a00:e0xx::/40/8855850yes
2406:5a00:e0xx::/40/8055850yes
2406:5a00:e0xx::/40/7255850yes
2406:5a00:e0xx::/40/6455850yes
2406:5a00:e0xx::/40/5655850yes
2406:5a00:e0xx::/40/48UNROUTEDno
2406:5a00:e0xx::/40/40UNROUTEDno
2406:5a00:60xx::/40/32UNROUTEDsendto
2406:5a80:e0xx::/40/24UNROUTEDno
2406:da00:e0xx::/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)
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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