Session Report
Summary:
Test run at: 2021-02-27 13:06:55 GMT
Client Prefix (v4): 45.86.201.x/24
Client AS (v4): 60781 (LEASEWEB-NL-AMS-01)
IPv4 Probes: 69
| 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 (45.86.201.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 45.86.201.x/24 | /31 | 60781 | natblock |
| 45.86.201.x/24 | /30 | 60781 | natblock |
| 45.86.201.x/24 | /29 | 60781 | natblock |
| 45.86.201.x/24 | /28 | 60781 | natblock |
| 45.86.201.x/24 | /27 | 60781 | natblock |
| 45.86.201.x/24 | /26 | 60781 | natblock |
| 45.86.201.x/24 | /25 | 60781 | natblock |
| 45.86.201.x/24 | /24 | 60781 | natblock |
| 45.86.200.x/24 | /23 | 206092 | natblock |
| 45.86.203.x/24 | /22 | 28753 | natblock |
| 45.86.205.x/24 | /21 | 35625 | natblock |
| 45.86.193.x/24 | /20 | 212786 | natblock |
| 45.86.217.x/24 | /19 | UNROUTED | natblock |
| 45.86.233.x/24 | /18 | 137443 | natblock |
| 45.86.137.x/24 | /17 | 21368 | natblock |
| 45.86.73.x/24 | /16 | 35913 | natblock |
| 45.87.201.x/24 | /15 | 207065 | natblock |
| 45.84.201.x/24 | /14 | 208802 | natblock |
| 45.82.201.x/24 | /13 | UNROUTED | natblock |
| 45.94.201.x/24 | /12 | 26636 | natblock |
| 45.70.201.x/24 | /11 | 264668 | natblock |
| 45.118.201.x/24 | /10 | UNROUTED | natblock |
| 45.22.201.x/24 | /9 | 7018 | natblock |
| 45.214.201.x/24 | /8 | 37287 | 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.
Feedback:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
