Session Report
Summary:
Test run at: 2016-11-28 08:47:42 GMT
Client Prefix (v4): 130.185.104.x/24
Client AS (v4): 51191 (XIRRA)
IPv4 Probes: 90
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
✔ | blocked |
| Routable |
✔ | blocked |
| Largest spoofable neighbor prefix length |
/24 |
| 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 (130.185.104.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 130.185.104.x/24 | /31 | 51191 | yes |
| 130.185.104.x/24 | /30 | 51191 | yes |
| 130.185.104.x/24 | /29 | 51191 | yes |
| 130.185.104.x/24 | /28 | 51191 | yes |
| 130.185.104.x/24 | /27 | 51191 | yes |
| 130.185.104.x/24 | /26 | 51191 | yes |
| 130.185.104.x/24 | /25 | 51191 | yes |
| 130.185.104.x/24 | /24 | 51191 | yes |
| 130.185.105.x/24 | /23 | 51191 | no |
| 130.185.106.x/24 | /22 | 51191 | no |
| 130.185.108.x/24 | /21 | 51191 | no |
| 130.185.96.x/24 | /20 | 34688 | no |
| 130.185.120.x/24 | /19 | UNROUTED | no |
| 130.185.72.x/24 | /18 | 48434 | no |
| 130.185.40.x/24 | /17 | 31343 | no |
| 130.185.232.x/24 | /16 | 13147 | no |
| 130.184.104.x/24 | /15 | 10508 | no |
| 130.187.104.x/24 | /14 | 33660 | no |
| 130.189.104.x/24 | /13 | 11197 | no |
| 130.177.104.x/24 | /12 | UNROUTED | no |
| 130.169.104.x/24 | /11 | UNROUTED | no |
| 130.153.104.x/24 | /10 | 2907 | no |
| 130.249.104.x/24 | /9 | UNROUTED | no |
| 130.57.104.x/24 | /8 | 3680 | 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.
