Ever wonder what the codes meant for Ping and Traceroute? Here you go:
Ping Text Characters
| Character | Description |
|---|---|
| ! | Each exclamation point indicates receipt of a reply. |
| . | Each period indicates the network server timed out while waiting for a reply. |
| U | A destination unreachable error PDU was received. |
| Q | Source quench (destination too busy). |
| M | Could not fragment. |
| ? | Unknown packet type. |
| & | Packet lifetime exceeded. |
| Character | Description |
|---|---|
| nn msec | For each node, the round-trip time in milliseconds for the specified number of probes |
| * | The probe timed out |
| A | Administratively prohibited (example, access-list) |
| Q | Source quench (destination too busy) |
| I | User interrupted test |
| U | Port unreachable |
| H | Host unreachable |
| N | Network unreachable |
| P | Protocol Unreachable |
| T | Timeout |
| ? | Unknown packet type |