Session Report
Summary:
Test run at: 2020-06-27 08:47:42 GMT
Client Prefix (v4): 45.58.138.x/24
Client AS (v4): 46844 (ST-BGP)
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 |
/18 |
| 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 (45.58.138.x/24) can spoof 16383 neighboring addresses (within your /18 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 45.58.138.x/24 | /31 | 46844 | yes |
| 45.58.138.x/24 | /30 | 46844 | yes |
| 45.58.138.x/24 | /29 | 46844 | yes |
| 45.58.138.x/24 | /28 | 46844 | yes |
| 45.58.138.x/24 | /27 | 46844 | yes |
| 45.58.138.x/24 | /26 | 46844 | yes |
| 45.58.138.x/24 | /25 | 46844 | yes |
| 45.58.138.x/24 | /24 | 46844 | yes |
| 45.58.139.x/24 | /23 | 46844 | yes |
| 45.58.136.x/24 | /22 | 46844 | yes |
| 45.58.142.x/24 | /21 | 46844 | yes |
| 45.58.130.x/24 | /20 | 46844 | yes |
| 45.58.154.x/24 | /19 | 46844 | yes |
| 45.58.170.x/24 | /18 | 46844 | yes |
| 45.58.202.x/24 | /17 | 36493 | no |
| 45.58.10.x/24 | /16 | 14821 | no |
| 45.59.138.x/24 | /15 | UNROUTED | no |
| 45.56.138.x/24 | /14 | 8100 | no |
| 45.62.138.x/24 | /13 | 31882 | no |
| 45.50.138.x/24 | /12 | 20001 | no |
| 45.42.138.x/24 | /11 | UNROUTED | no |
| 45.26.138.x/24 | /10 | 7018 | no |
| 45.122.138.x/24 | /9 | 132742 | no |
| 45.186.138.x/24 | /8 | 27997 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
| yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
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.
