Session Report
Summary:
Test run at: 2020-09-07 20:22:30 GMT
Client Prefix (v4): 209.14.0.x/24
Client AS (v4): 40676 (AS40676)
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 |
none |
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 (209.14.0.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
209.14.0.x/24 | /31 | 40676 | natblock |
209.14.0.x/24 | /30 | 40676 | natblock |
209.14.0.x/24 | /29 | 40676 | natblock |
209.14.0.x/24 | /28 | 40676 | natblock |
209.14.0.x/24 | /27 | 40676 | natblock |
209.14.0.x/24 | /26 | 40676 | natblock |
209.14.0.x/24 | /25 | 40676 | natblock |
209.14.0.x/24 | /24 | 40676 | natblock |
209.14.1.x/24 | /23 | 40676 | natblock |
209.14.2.x/24 | /22 | 268581 | natblock |
209.14.4.x/24 | /21 | 174 | natblock |
209.14.8.x/24 | /20 | 174 | natblock |
209.14.16.x/24 | /19 | 174 | natblock |
209.14.32.x/24 | /18 | 61573 | natblock |
209.14.64.x/24 | /17 | 6220 | natblock |
209.14.128.x/24 | /16 | 174 | natblock |
209.15.0.x/24 | /15 | 13768 | natblock |
209.12.0.x/24 | /14 | 3549 | natblock |
209.10.0.x/24 | /13 | 4136 | natblock |
209.6.0.x/24 | /12 | 6079 | natblock |
209.30.0.x/24 | /11 | 7018 | natblock |
209.46.0.x/24 | /10 | 7381 | natblock |
209.78.0.x/24 | /9 | 7132 | natblock |
209.142.0.x/24 | /8 | 53732 | natblock |
Meaning of status in Received column:
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
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.
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