Session Report
Summary:
Test run at: 2020-02-17 20:11:48 GMT
Client Prefix (v4): 2.56.8.x/24
Client AS (v4): 25369 (BANDWIDTH-AS)
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 |
/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 (2.56.8.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
2.56.8.x/24 | /31 | 25369 | yes |
2.56.8.x/24 | /30 | 25369 | yes |
2.56.8.x/24 | /29 | 25369 | yes |
2.56.8.x/24 | /28 | 25369 | yes |
2.56.8.x/24 | /27 | 25369 | yes |
2.56.8.x/24 | /26 | 25369 | yes |
2.56.8.x/24 | /25 | 25369 | yes |
2.56.8.x/24 | /24 | 25369 | yes |
2.56.9.x/24 | /23 | 208076 | no |
2.56.10.x/24 | /22 | 133846 | no |
2.56.12.x/24 | /21 | 208641 | no |
2.56.0.x/24 | /20 | UNROUTED | no |
2.56.24.x/24 | /19 | 8219 | no |
2.56.40.x/24 | /18 | 35336 | no |
2.56.72.x/24 | /17 | 396319 | no |
2.56.136.x/24 | /16 | 48031 | no |
2.57.8.x/24 | /15 | 209200 | no |
2.58.8.x/24 | /14 | 19905 | no |
2.60.8.x/24 | /13 | 12389 | no |
2.48.8.x/24 | /12 | 5384 | no |
2.40.8.x/24 | /11 | UNROUTED | no |
2.24.8.x/24 | /10 | 12576 | no |
2.120.8.x/24 | /9 | 5607 | no |
2.184.8.x/24 | /8 | 58224 | 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.
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