Session Report
Summary:
Test run at: 2017-04-19 07:50:08 GMT
Client Prefix (v4): 220.76.6.x/24
Client AS (v4): 4766 (KIXS-AS-KR)
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 |
/26 |
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 (220.76.6.x/24) can spoof 63 neighboring addresses (within your /26 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
220.76.6.x/24 | /31 | 4766 | yes |
220.76.6.x/24 | /30 | 4766 | yes |
220.76.6.x/24 | /29 | 4766 | yes |
220.76.6.x/24 | /28 | 4766 | yes |
220.76.6.x/24 | /27 | 4766 | yes |
220.76.6.x/24 | /26 | 4766 | yes |
220.76.6.x/24 | /25 | 4766 | no |
220.76.6.x/24 | /24 | 4766 | no |
220.76.7.x/24 | /23 | 4766 | no |
220.76.4.x/24 | /22 | 4766 | no |
220.76.2.x/24 | /21 | 4766 | no |
220.76.14.x/24 | /20 | 4766 | no |
220.76.22.x/24 | /19 | 4766 | no |
220.76.38.x/24 | /18 | 4766 | no |
220.76.70.x/24 | /17 | 4766 | no |
220.76.134.x/24 | /16 | 4766 | no |
220.77.6.x/24 | /15 | 4766 | no |
220.78.6.x/24 | /14 | 4766 | no |
220.72.6.x/24 | /13 | 4766 | no |
220.68.6.x/24 | /12 | 9870 | no |
220.92.6.x/24 | /11 | 4766 | no |
220.108.6.x/24 | /10 | 4713 | no |
220.12.6.x/24 | /9 | 17676 | no |
220.204.6.x/24 | /8 | UNROUTED | 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
able to spoof routable, non-adjacent source addresses through the
first 1 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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