Session Report
Summary:
Test run at: 2020-08-13 18:11:40 GMT
Client Prefix (v4): 185.146.157.x/24
Client AS (v4): 29182 (THEFIRST-AS)
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 (185.146.157.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 185.146.157.x/24 | /31 | 29182 | natblock |
| 185.146.157.x/24 | /30 | 29182 | natblock |
| 185.146.157.x/24 | /29 | 29182 | natblock |
| 185.146.157.x/24 | /28 | 29182 | natblock |
| 185.146.157.x/24 | /27 | 29182 | natblock |
| 185.146.157.x/24 | /26 | 29182 | natblock |
| 185.146.157.x/24 | /25 | 29182 | natblock |
| 185.146.157.x/24 | /24 | 29182 | natblock |
| 185.146.156.x/24 | /23 | 29182 | natblock |
| 185.146.159.x/24 | /22 | 29182 | natblock |
| 185.146.153.x/24 | /21 | 14870 | natblock |
| 185.146.149.x/24 | /20 | 201730 | natblock |
| 185.146.141.x/24 | /19 | 203052 | natblock |
| 185.146.189.x/24 | /18 | 208622 | natblock |
| 185.146.221.x/24 | /17 | 30781 | natblock |
| 185.146.29.x/24 | /16 | 55293 | natblock |
| 185.147.157.x/24 | /15 | 46261 | natblock |
| 185.144.157.x/24 | /14 | 47869 | natblock |
| 185.150.157.x/24 | /13 | 202918 | natblock |
| 185.154.157.x/24 | /12 | 202779 | natblock |
| 185.130.157.x/24 | /11 | 203568 | natblock |
| 185.178.157.x/24 | /10 | 21182 | natblock |
| 185.210.157.x/24 | /9 | UNROUTED | natblock |
| 185.18.157.x/24 | /8 | 12880 | 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
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.
Feedback:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
