Session Report
Summary:
Test run at: 2020-08-13 20:07:52 GMT
Client Prefix (v4): 194.87.138.x/24
Client AS (v4): 24961 (MYLOC-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 (194.87.138.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 194.87.138.x/24 | /31 | 24961 | no |
| 194.87.138.x/24 | /30 | 24961 | no |
| 194.87.138.x/24 | /29 | 24961 | no |
| 194.87.138.x/24 | /28 | 24961 | no |
| 194.87.138.x/24 | /27 | 24961 | no |
| 194.87.138.x/24 | /26 | 24961 | no |
| 194.87.138.x/24 | /25 | 24961 | no |
| 194.87.138.x/24 | /24 | 24961 | no |
| 194.87.139.x/24 | /23 | 24961 | no |
| 194.87.136.x/24 | /22 | 41082 | no |
| 194.87.142.x/24 | /21 | 25369 | no |
| 194.87.130.x/24 | /20 | 49392 | no |
| 194.87.154.x/24 | /19 | 12668 | no |
| 194.87.170.x/24 | /18 | 41082 | no |
| 194.87.202.x/24 | /17 | 197695 | no |
| 194.87.10.x/24 | /16 | 41082 | no |
| 194.86.138.x/24 | /15 | 719 | no |
| 194.85.138.x/24 | /14 | 3216 | no |
| 194.83.138.x/24 | /13 | 786 | no |
| 194.95.138.x/24 | /12 | 680 | no |
| 194.71.138.x/24 | /11 | 47467 | no |
| 194.119.138.x/24 | /10 | 8426 | no |
| 194.23.138.x/24 | /9 | 3301 | no |
| 194.215.138.x/24 | /8 | 1759 | 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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Users Mailing List for discussion and announcements.
