| Rev | Author | # | Line |
|---|---|---|---|
| 1 | MattBrown | 1 | [ICMP] reason subcode 0x3, used with [ICMP] reason code 0x3 to explain why a DestinationUnreachable message was sent. |
| 2 | |||
| 3 | It is usally generated by a host when there is no application listening on the specified port. | ||
| 2 | BenStaz | 4 | The destination port on the targeted host is closed (a.k.a. not in a listening state). |
