Session Report
Summary:
Test run at: 2020-02-03 01:57:25 GMT
Client Prefix (v4): 45.10.90.x/24
Client AS (v4): 48693 (NTSERVICE-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 |
/22 |
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 (45.10.90.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
45.10.90.x/24 | /31 | 48693 | yes |
45.10.90.x/24 | /30 | 48693 | yes |
45.10.90.x/24 | /29 | 48693 | yes |
45.10.90.x/24 | /28 | 48693 | yes |
45.10.90.x/24 | /27 | 48693 | yes |
45.10.90.x/24 | /26 | 48693 | yes |
45.10.90.x/24 | /25 | 48693 | yes |
45.10.90.x/24 | /24 | 48693 | yes |
45.10.91.x/24 | /23 | 203303 | no |
45.10.88.x/24 | /22 | 48693 | yes |
45.10.94.x/24 | /21 | UNROUTED | no |
45.10.82.x/24 | /20 | 49505 | no |
45.10.74.x/24 | /19 | 49632 | no |
45.10.122.x/24 | /18 | UNROUTED | no |
45.10.26.x/24 | /17 | 31400 | no |
45.10.218.x/24 | /16 | 44676 | no |
45.11.90.x/24 | /15 | 40676 | no |
45.8.90.x/24 | /14 | 49450 | no |
45.14.90.x/24 | /13 | UNROUTED | no |
45.2.90.x/24 | /12 | 7311 | no |
45.26.90.x/24 | /11 | 7018 | no |
45.42.90.x/24 | /10 | 26658 | no |
45.74.90.x/24 | /9 | 23089 | no |
45.138.90.x/24 | /8 | 25274 | 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.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List
and invite users to join the Spoofer
Users Mailing List for discussion and announcements.