Session Report
Summary:
Test run at: 2020-09-05 22:36:50 GMT
Client Prefix (v4): 91.227.223.x/24
Client AS (v4): 62217 (VooServers)
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 (91.227.223.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 91.227.223.x/24 | /31 | 62217 | natblock |
| 91.227.223.x/24 | /30 | 62217 | natblock |
| 91.227.223.x/24 | /29 | 62217 | natblock |
| 91.227.223.x/24 | /28 | 62217 | natblock |
| 91.227.223.x/24 | /27 | 62217 | natblock |
| 91.227.223.x/24 | /26 | 62217 | natblock |
| 91.227.223.x/24 | /25 | 62217 | natblock |
| 91.227.223.x/24 | /24 | 62217 | natblock |
| 91.227.222.x/24 | /23 | 62217 | natblock |
| 91.227.221.x/24 | /22 | 62217 | natblock |
| 91.227.219.x/24 | /21 | 197840 | natblock |
| 91.227.215.x/24 | /20 | 57305 | natblock |
| 91.227.207.x/24 | /19 | 196863 | natblock |
| 91.227.255.x/24 | /18 | 56811 | natblock |
| 91.227.159.x/24 | /17 | 56783 | natblock |
| 91.227.95.x/24 | /16 | 56760 | natblock |
| 91.226.223.x/24 | /15 | 56702 | natblock |
| 91.225.223.x/24 | /14 | 51725 | natblock |
| 91.231.223.x/24 | /13 | UNROUTED | natblock |
| 91.235.223.x/24 | /12 | 197734 | natblock |
| 91.243.223.x/24 | /11 | 59567 | natblock |
| 91.195.223.x/24 | /10 | UNROUTED | natblock |
| 91.163.223.x/24 | /9 | 12322 | natblock |
| 91.99.223.x/24 | /8 | 16322 | 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
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.
