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Session Report

Summary:
Test run at: 2019-09-25 14:31:30 GMT
Client Prefix (v4): 41.71.103.x/24
Client AS (v4): 37053 (RSAWEB-AS)
IPv4 Probes: 72
Client Prefix (v6): 2c0f:fa90:11xx::/40
Client AS (v6): 37271 (Workonline)
IPv6 Probes: 64
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable receivedblocked
Largest spoofable neighbor prefix length nonenone
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 (41.71.103.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.71.103.x/24/3137053rewritten
41.71.103.x/24/3037053rewritten
41.71.103.x/24/2937053rewritten
41.71.103.x/24/2837053rewritten
41.71.103.x/24/2737053rewritten
41.71.103.x/24/2637053rewritten
41.71.103.x/24/2537053rewritten
41.71.103.x/24/2437053rewritten
41.71.102.x/24/2337053rewritten
41.71.101.x/24/2237053rewritten
41.71.99.x/24/2137053rewritten
41.71.111.x/24/2037053rewritten
41.71.119.x/24/1937053rewritten
41.71.71.x/24/1837053rewritten
41.71.39.x/24/1737053rewritten
41.71.231.x/24/16UNROUTEDrewritten
41.70.103.x/24/15UNROUTEDrewritten
41.69.103.x/24/1424835rewritten
41.67.103.x/24/13UNROUTEDrewritten
41.79.103.x/24/12UNROUTEDrewritten
41.87.103.x/24/1137100rewritten
41.103.103.x/24/1036947rewritten
41.7.103.x/24/929975rewritten
41.199.103.x/24/836992rewritten

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 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::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
2001:48d0:101:501::1592001:48d0:101:501::242no
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::247no
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::1592001:770:18:7:225:90ff:fe0c:acb4no
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
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:48d0:101:501::1592607:f278:2:13:ba27:ebff:fe3f:b21eno
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
2c0f:fa90:11xx::/40/12037271no
2c0f:fa90:11xx::/40/11237271no
2c0f:fa90:11xx::/40/10437271no
2c0f:fa90:11xx::/40/9637271no
2c0f:fa90:11xx::/40/8837271no
2c0f:fa90:11xx::/40/8037271no
2c0f:fa90:11xx::/40/7237271no
2c0f:fa90:11xx::/40/6437271no
2c0f:fa90:11xx::/40/5637271no
2c0f:fa90:11xx::/40/4837271no
2c0f:fa90:11xx::/40/4037271no
2c0f:fa90:91xx::/40/3237271no
2c0f:fa10:11xx::/40/2430844no
2c0f:7a90:11xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
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