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Session Report

Summary:
Test run at: 2019-12-29 18:39:28 GMT
Client Prefix (v4): 185.53.88.x/24
Client AS (v4): 209299
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /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.

IPv4 Adjacent Netblock Testing:

Your host (185.53.88.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.53.88.x/24/31209299yes
185.53.88.x/24/30209299yes
185.53.88.x/24/29209299yes
185.53.88.x/24/28209299yes
185.53.88.x/24/27209299yes
185.53.88.x/24/26209299yes
185.53.88.x/24/25209299yes
185.53.88.x/24/24209299yes
185.53.89.x/24/23UNROUTEDno
185.53.90.x/24/22208623no
185.53.92.x/24/2156730no
185.53.80.x/24/20197685no
185.53.72.x/24/1959770no
185.53.120.x/24/18204118no
185.53.24.x/24/17201828no
185.53.216.x/24/1628876no
185.52.88.x/24/1515805no
185.55.88.x/24/1451580no
185.49.88.x/24/13202463no
185.61.88.x/24/1231472no
185.37.88.x/24/1162368no
185.21.88.x/24/10199318no
185.117.88.x/24/942708no
185.181.88.x/24/8UNROUTEDno

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 able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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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