A Link Control Protocol packet is a variant of a PPP Frame which controls the function of the link between two devices, issuing commands like disconnection requests.
Note
A Link Control Protocol packet looks like:
Codes
The codes that may be sent in a Link Control Protocol packet are:
| Code | Packet Type | Description |
|---|---|---|
0x01 | Configure-request | Returns the list of available config options |
0x02 | Configure-ack | Accepts the proposed options list |
0x03 | Configure-nak | Does not accept some config options |
0x04 | Configure-reject | Does not recognize some config options |
0x05 | Terminate-request | Requests a shutdown |
0x06 | Terminate-ack | Accepts a shutdown |
Options
Some of the configuration options available are:
| Option | Default |
|---|---|
| Maximum Receive Unit | 1500 |
| Authentication Protocol | None |
| Protocol Field Compression | Off |
| Address and Control Field Compression | Off |