Session Report
Summary:
Test run at: 2020-09-03 17:43:08 GMT
Client Prefix (v4): 23.157.112.x/24
Client AS (v4): 62538 (IPFAIL)
IPv4 Probes: 75
Client Prefix (v6): 2605:c640:dxx::/40
Client AS (v6): 62538 (IPFAIL)
IPv6 Probes: 68
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 | IPv6 |
|---|
| Private -
RFC1918 or ULA |
unknown | unknown |
| Routable |
✔ | unknown | unknown |
| Largest spoofable neighbor prefix length |
none | 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. |
Warnings:
- ⚠️ Your host was unable to source even non-spoofed IPv4 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
- ⚠️ Your host was unable to source even non-spoofed IPv6 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
IPv4 Adjacent Netblock Testing:
Your host (23.157.112.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 23.157.112.x/24 | /31 | 62538 | no |
| 23.157.112.x/24 | /30 | 62538 | no |
| 23.157.112.x/24 | /29 | 62538 | no |
| 23.157.112.x/24 | /28 | 62538 | no |
| 23.157.112.x/24 | /27 | 62538 | no |
| 23.157.112.x/24 | /26 | 62538 | no |
| 23.157.112.x/24 | /25 | 62538 | no |
| 23.157.112.x/24 | /24 | 62538 | no |
| 23.157.113.x/24 | /23 | UNROUTED | no |
| 23.157.114.x/24 | /22 | UNROUTED | no |
| 23.157.116.x/24 | /21 | UNROUTED | no |
| 23.157.120.x/24 | /20 | UNROUTED | no |
| 23.157.96.x/24 | /19 | 394752 | no |
| 23.157.80.x/24 | /18 | UNROUTED | no |
| 23.157.48.x/24 | /17 | UNROUTED | no |
| 23.157.240.x/24 | /16 | 21527 | no |
| 23.156.112.x/24 | /15 | 10753 | no |
| 23.159.112.x/24 | /14 | 397131 | no |
| 23.153.112.x/24 | /13 | 14756 | no |
| 23.149.112.x/24 | /12 | 57782 | no |
| 23.141.112.x/24 | /11 | 34553 | no |
| 23.189.112.x/24 | /10 | UNROUTED | no |
| 23.221.112.x/24 | /9 | 16625 | no |
| 23.29.112.x/24 | /8 | 54540 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
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).
IPv6 Adjacent Netblock Testing:
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 2605:c640:dxx::/40 | /120 | 62538 | no |
| 2605:c640:dxx::/40 | /112 | 62538 | no |
| 2605:c640:dxx::/40 | /104 | 62538 | no |
| 2605:c640:dxx::/40 | /96 | 62538 | no |
| 2605:c640:dxx::/40 | /88 | 62538 | no |
| 2605:c640:dxx::/40 | /80 | 62538 | no |
| 2605:c640:dxx::/40 | /72 | 62538 | no |
| 2605:c640:dxx::/40 | /64 | 62538 | no |
| 2605:c640:dxx::/40 | /56 | 62538 | no |
| 2605:c640:dxx::/40 | /48 | 62538 | no |
| 2605:c640:dxx::/40 | /40 | 62538 | no |
| 2605:c640:8dxx::/40 | /32 | 62538 | no |
| 2605:c6c0:dxx::/40 | /24 | UNROUTED | no |
| 2605:4640:dxx::/40 | /16 | UNROUTED | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
Feedback:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
