Session Report
Summary:
Test run at: 2020-08-24 14:25:26 GMT
Client Prefix (v4): 210.16.101.x/24
Client AS (v4): 23033 (WOW)
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 (210.16.101.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 210.16.101.x/24 | /31 | 23033 | natblock |
| 210.16.101.x/24 | /30 | 23033 | natblock |
| 210.16.101.x/24 | /29 | 23033 | natblock |
| 210.16.101.x/24 | /28 | 23033 | natblock |
| 210.16.101.x/24 | /27 | 23033 | natblock |
| 210.16.101.x/24 | /26 | 23033 | natblock |
| 210.16.101.x/24 | /25 | 23033 | natblock |
| 210.16.101.x/24 | /24 | 23033 | natblock |
| 210.16.100.x/24 | /23 | 40676 | natblock |
| 210.16.103.x/24 | /22 | 133296 | natblock |
| 210.16.97.x/24 | /21 | 26658 | natblock |
| 210.16.109.x/24 | /20 | UNROUTED | natblock |
| 210.16.117.x/24 | /19 | UNROUTED | natblock |
| 210.16.69.x/24 | /18 | 7477 | natblock |
| 210.16.37.x/24 | /17 | 4759 | natblock |
| 210.16.229.x/24 | /16 | 38661 | natblock |
| 210.17.101.x/24 | /15 | 9924 | natblock |
| 210.18.101.x/24 | /14 | 9583 | natblock |
| 210.20.101.x/24 | /13 | 9824 | natblock |
| 210.24.101.x/24 | /12 | 136552 | natblock |
| 210.0.101.x/24 | /11 | 2764 | natblock |
| 210.48.101.x/24 | /10 | 4770 | natblock |
| 210.80.101.x/24 | /9 | 703 | natblock |
| 210.144.101.x/24 | /8 | 4673 | 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.
