Logo

Session Report

Summary:
Test run at: 2020-08-20 00:57:51 GMT
Client Prefix (v4): 86.106.121.x/24
Client AS (v4): 9009 (M247)
IPv4 Probes: 75
Client Prefix (v6): 2a0d:5600:xx::/40
Client AS (v6): 9009 (M247)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
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 Adjacent Netblock Testing:

Your host (86.106.121.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
86.106.121.x/24/319009natblock
86.106.121.x/24/309009natblock
86.106.121.x/24/299009natblock
86.106.121.x/24/289009natblock
86.106.121.x/24/279009natblock
86.106.121.x/24/269009natblock
86.106.121.x/24/259009natblock
86.106.121.x/24/249009natblock
86.106.120.x/24/23209519natblock
86.106.123.x/24/226663natblock
86.106.125.x/24/216910natblock
86.106.113.x/24/208708natblock
86.106.105.x/24/1951490natblock
86.106.89.x/24/18203872natblock
86.106.57.x/24/176830natblock
86.106.249.x/24/168926natblock
86.107.121.x/24/156696natblock
86.104.121.x/24/143329natblock
86.110.121.x/24/133267natblock
86.98.121.x/24/125384natblock
86.122.121.x/24/118708natblock
86.74.121.x/24/1015557natblock
86.42.121.x/24/95466natblock
86.234.121.x/24/83215natblock

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.
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a0d:5600:xx::/40/1209009natblock
2a0d:5600:xx::/40/1129009natblock
2a0d:5600:xx::/40/1049009natblock
2a0d:5600:xx::/40/969009natblock
2a0d:5600:xx::/40/889009natblock
2a0d:5600:xx::/40/809009natblock
2a0d:5600:xx::/40/729009natblock
2a0d:5600:xx::/40/649009natblock
2a0d:5600:xx::/40/569009natblock
2a0d:5600:xx::/40/489009natblock
2a0d:5600:xx::/40/40UNROUTEDnatblock
2a0d:5600:80xx::/40/32UNROUTEDnatblock
2a0d:5680:xx::/40/24UNROUTEDnatblock
2a0d:d600:xx::/40/16UNROUTEDnatblock

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.
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