Session Report
Summary:
Test run at: 2020-11-28 09:17:06 GMT
Client Prefix (v4): 185.165.190.x/24
Client AS (v4): 174 (COGENT-174)
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 (185.165.190.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 185.165.190.x/24 | /31 | 174 | no |
| 185.165.190.x/24 | /30 | 174 | no |
| 185.165.190.x/24 | /29 | 174 | no |
| 185.165.190.x/24 | /28 | 174 | no |
| 185.165.190.x/24 | /27 | 174 | no |
| 185.165.190.x/24 | /26 | 174 | no |
| 185.165.190.x/24 | /25 | 174 | no |
| 185.165.190.x/24 | /24 | 174 | no |
| 185.165.191.x/24 | /23 | UNROUTED | no |
| 185.165.188.x/24 | /22 | 174 | no |
| 185.165.186.x/24 | /21 | 40975 | no |
| 185.165.182.x/24 | /20 | UNROUTED | no |
| 185.165.174.x/24 | /19 | 12552 | no |
| 185.165.158.x/24 | /18 | UNROUTED | no |
| 185.165.254.x/24 | /17 | 60609 | no |
| 185.165.62.x/24 | /16 | 201341 | no |
| 185.164.190.x/24 | /15 | UNROUTED | no |
| 185.167.190.x/24 | /14 | 44071 | no |
| 185.161.190.x/24 | /13 | 9009 | no |
| 185.173.190.x/24 | /12 | 206561 | no |
| 185.181.190.x/24 | /11 | 8859 | no |
| 185.133.190.x/24 | /10 | 203645 | no |
| 185.229.190.x/24 | /9 | 60068 | no |
| 185.37.190.x/24 | /8 | 62382 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
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.
