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Session Report

Summary:
Test run at: 2018-03-31 20:40:32 GMT
Client Prefix (v4): 89.248.171.x/24
Client AS (v4): 29073
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /25
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 Adjacent Netblock Testing:

Your host (89.248.171.x/24) can spoof 127 neighboring addresses (within your /25 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
89.248.171.x/24/3129073yes
89.248.171.x/24/3029073yes
89.248.171.x/24/2929073yes
89.248.171.x/24/2829073yes
89.248.171.x/24/2729073yes
89.248.171.x/24/2629073yes
89.248.171.x/24/2529073yes
89.248.171.x/24/2429073no
89.248.170.x/24/2329073no
89.248.169.x/24/2229073no
89.248.175.x/24/21UNROUTEDno
89.248.163.x/24/2029073no
89.248.187.x/24/1934687no
89.248.139.x/24/1842517no
89.248.235.x/24/1734221no
89.248.43.x/24/1642346no
89.249.171.x/24/152848no
89.250.171.x/24/1412389no
89.252.171.x/24/1351559no
89.240.171.x/24/1213285no
89.232.171.x/24/11UNROUTEDno
89.216.171.x/24/1031042no
89.184.171.x/24/939647no
89.120.171.x/24/89050no

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.
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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