Session Report
Summary:
Test run at: 2020-08-18 14:22:26 GMT
Client Prefix (v4): 81.92.205.x/24
Client AS (v4): 9009 (M247)
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 |
/29 |
Spoof status key |
---|
received | Spoofed packet was received. | ✔ | Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. |
rewritten | Spoofed packet was received, but the source address was changed en route. |
blocked | Spoofed packet was not received, but unspoofed packet was. |
unknown | Neither spoofed nor unspoofed packet was received. |
IPv4 Adjacent Netblock Testing:
Your host (81.92.205.x/24) can spoof 7 neighboring addresses (within your /29 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
81.92.205.x/24 | /31 | 9009 | yes |
81.92.205.x/24 | /30 | 9009 | yes |
81.92.205.x/24 | /29 | 9009 | yes |
81.92.205.x/24 | /28 | 9009 | natblock |
81.92.205.x/24 | /27 | 9009 | natblock |
81.92.205.x/24 | /26 | 9009 | natblock |
81.92.205.x/24 | /25 | 9009 | natblock |
81.92.205.x/24 | /24 | 9009 | natblock |
81.92.204.x/24 | /23 | 9009 | natblock |
81.92.207.x/24 | /22 | 9009 | natblock |
81.92.201.x/24 | /21 | 9009 | natblock |
81.92.197.x/24 | /20 | 34244 | natblock |
81.92.221.x/24 | /19 | 34244 | natblock |
81.92.237.x/24 | /18 | 25273 | natblock |
81.92.141.x/24 | /17 | 209190 | natblock |
81.92.77.x/24 | /16 | 25146 | natblock |
81.93.205.x/24 | /15 | 24991 | natblock |
81.94.205.x/24 | /14 | 20860 | natblock |
81.88.205.x/24 | /13 | 25035 | natblock |
81.84.205.x/24 | /12 | 2860 | natblock |
81.76.205.x/24 | /11 | UNROUTED | natblock |
81.124.205.x/24 | /10 | 20959 | natblock |
81.28.205.x/24 | /9 | 24904 | natblock |
81.220.205.x/24 | /8 | 15557 | natblock |
Meaning of status in Received column:
yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
natblock | Spoofed 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
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.
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