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fix: adjust cira tunnel_lifetime to 1 hour #1342

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fix: adjust cira tunnel_lifetime to 1 hour #1342

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3 changes: 2 additions & 1 deletion src/amt/APFProcessor.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import { EventEmitter } from 'node:events'
import { Environment } from '../utils/Environment.js'

const KEEPALIVE_INTERVAL = 30 // 30 seconds is typical keepalive interval for AMT CIRA connection
const TUNNEL_LIFETIME = 3600 // 3600 seconds (1 hour) will cause AMT to disconnect and reconnect. This is a work around where AMT can get into a disconnected state and never attempt to reconnect.

export enum APFProtocol {
UNKNOWN = 0,
Expand Down Expand Up @@ -298,7 +299,7 @@ const APFProcessor = {
APFProcessor.SendTcpForwardSuccessReply(socket, port)
// 5900 port is the last TCP port on which connections for forwarding are to be cancelled. Ports order: 16993, 16992, 664, 623, 16995, 16994, 5900
// Request keepalive interval time
if (port === 5900) { APFProcessor.SendKeepaliveOptionsRequest(socket, KEEPALIVE_INTERVAL, 0) }
if (port === 5900) { APFProcessor.SendKeepaliveOptionsRequest(socket, KEEPALIVE_INTERVAL, TUNNEL_LIFETIME) }
return 14 + requestLen + addrLen
}

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