Session Report
Summary:
Test run at: 2019-07-01 10:17:35 GMT
Client Prefix (v4): 23.247.2.x/24
Client AS (v4): 46573 (LAYER-HOST)
IPv4 Probes: 93
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
received |
Largest spoofable neighbor prefix length |
/8 |
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 (23.247.2.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
23.247.2.x/24 | /31 | 46573 | yes |
23.247.2.x/24 | /30 | 46573 | yes |
23.247.2.x/24 | /29 | 46573 | yes |
23.247.2.x/24 | /28 | 46573 | yes |
23.247.2.x/24 | /27 | 46573 | yes |
23.247.2.x/24 | /26 | 46573 | yes |
23.247.2.x/24 | /25 | 46573 | yes |
23.247.2.x/24 | /24 | 46573 | yes |
23.247.3.x/24 | /23 | 46573 | yes |
23.247.0.x/24 | /22 | 46573 | yes |
23.247.6.x/24 | /21 | 46573 | yes |
23.247.10.x/24 | /20 | 46573 | yes |
23.247.18.x/24 | /19 | 46573 | yes |
23.247.34.x/24 | /18 | 46573 | yes |
23.247.66.x/24 | /17 | 46573 | yes |
23.247.130.x/24 | /16 | UNROUTED | no |
23.246.2.x/24 | /15 | 2906 | yes |
23.245.2.x/24 | /14 | 18978 | yes |
23.243.2.x/24 | /13 | 20001 | yes |
23.255.2.x/24 | /12 | 11878 | yes |
23.231.2.x/24 | /11 | 62904 | yes |
23.215.2.x/24 | /10 | 2914 | yes |
23.183.2.x/24 | /9 | UNROUTED | no |
23.119.2.x/24 | /8 | 7018 | yes |
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 |
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
able to spoof routable, non-adjacent source addresses through the
first 10 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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