IS CNL
From LFS Manual
Revision as of 10:00, 10 February 2026 by Bokujishin (talk | contribs) (Created page with "== Introduction == The '''C'''on'''N'''ection '''L'''eave packet is sent by LFS when a player leaves the server. {| class="wikitable" |+ IS_CNL packet properties |- ! Type !...")
Introduction
The ConNection Leave packet is sent by LFS when a player leaves the server.
| Type | Name | Description |
|---|---|---|
| byte | Size | 8 |
| byte | Type | ISP_CNL |
| byte | ReqI | 0 |
| byte | UCID | unique id of the connection which left |
| byte | Reason | leave reason (LEAVR_x) |
| byte | Total | number of connections including host |
| byte | Sp2 | |
| byte | Sp3 |
Packet Details
Size
The size of the packet is always 8 bytes.
Type
The packet type from the ISP_ enumeration, always ISP_CNL.
ReqI
ReqI is always equal to zero.
UCID
The unique ID of the leaving connection.
Reason
The reason for leaving, a value from the LEAVR_ enumeration:
- LEAVR_DISCO: No reason given (disconnected)
- LEAVR_TIMEOUT: Timed out
- LEAVR_LOSTCONN: Lost connection
- LEAVR_KICKED: Kicked
- LEAVR_BANNED: Banned
- LEAVR_SECURITY: Security
- LEAVR_CPW: Cheat protection wrong
- LEAVR_OOS: Out of sync with host
- LEAVR_JOOS: Join OOS (initial sync failed)
- LEAVR_HACK: Invalid packet
Total
The total number of connections including the host.
