Session Report
Summary:
Test run at: 2022-04-29 20:34:03 GMT
Client Prefix (v4): 185.247.117.x/24
Client AS (v4): 60781 (LEASEWEB-NL-AMS-01)
IPv4 Probes: 60
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 (185.247.117.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
185.247.117.x/24 | /31 | 60781 | no |
185.247.117.x/24 | /30 | 60781 | no |
185.247.117.x/24 | /29 | 60781 | no |
185.247.117.x/24 | /28 | 60781 | no |
185.247.117.x/24 | /27 | 60781 | no |
185.247.117.x/24 | /26 | 60781 | no |
185.247.117.x/24 | /25 | 60781 | rewritten |
185.247.117.x/24 | /24 | 60781 | no |
185.247.116.x/24 | /23 | 62240 | no |
185.247.119.x/24 | /22 | 62240 | no |
185.247.113.x/24 | /21 | UNROUTED | no |
185.247.125.x/24 | /20 | 13287 | no |
185.247.101.x/24 | /19 | 198944 | no |
185.247.85.x/24 | /18 | 39405 | no |
185.247.53.x/24 | /17 | 25441 | no |
185.247.245.x/24 | /16 | 57933 | no |
185.246.117.x/24 | /15 | 59504 | no |
185.245.117.x/24 | /14 | 199542 | no |
185.243.117.x/24 | /13 | 35507 | no |
185.255.117.x/24 | /12 | 57728 | no |
185.231.117.x/24 | /11 | 205718 | no |
185.215.117.x/24 | /10 | 33657 | no |
185.183.117.x/24 | /9 | 206537 | no |
185.119.117.x/24 | /8 | 44133 | no |
Meaning of status in Received column:
no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
rewritten | The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers. |
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.
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