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Session Report

Summary:
Test run at: 2021-06-14 18:07:21 GMT
Client Prefix (v4): 185.191.206.x/24
Client AS (v4): 35758 (HQserv_communication_solutions)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
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 Adjacent Netblock Testing:

Your host (185.191.206.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.191.206.x/24/3135758natblock
185.191.206.x/24/3035758natblock
185.191.206.x/24/2935758natblock
185.191.206.x/24/2835758natblock
185.191.206.x/24/2735758natblock
185.191.206.x/24/2635758natblock
185.191.206.x/24/2535758natblock
185.191.206.x/24/2435758natblock
185.191.207.x/24/2335758natblock
185.191.204.x/24/2242994natblock
185.191.202.x/24/21UNROUTEDnatblock
185.191.198.x/24/2042244natblock
185.191.222.x/24/19UNROUTEDnatblock
185.191.238.x/24/1839782natblock
185.191.142.x/24/1745027natblock
185.191.78.x/24/1651431natblock
185.190.206.x/24/1560277natblock
185.189.206.x/24/1441385natblock
185.187.206.x/24/13UNROUTEDnatblock
185.183.206.x/24/12UNROUTEDnatblock
185.175.206.x/24/1126380natblock
185.159.206.x/24/1047176natblock
185.255.206.x/24/9202655natblock
185.63.206.x/24/8201609natblock

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.

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.
Last Modified