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Copying Email Data to a New Computer using Laplink software

Cause

A firewall or router must be configured properly to allow Laplink to connect over the necessary ports. LapLink utilizes TCP ports for:

• Establishing network connections to other LapLink computers.
• 
  
• Publishing a unique name to LapLink’s ILS server.
• 
  
• Listening for Surf Up connections.

Solution

Routers
Personal Firewall Software
Other Firewalls
Alternatives to Port Forwarding
More Detailed Information

Note: If you do not find specific instructions for your firewall or router, please contact the manufacturer for assistance in configuring it. For a list of ports used by Laplink, see More Detailed Information below.

Note: The firewall / router on the host end must always be configured. A Firewall / router protecting the guest computer may not require configuration.

Linksys Broadband Ethernet Cable/DSL router
NetGear Cable/DSL router
SMC Barricade Broadband Router
D-Link DI-704 Residential Gateway
Cisco 827 / 1700 / 2600 / 3600 Router
Cisco 678 Router
3COM Home Connect Wireless Gateway

The easiest solution is to temporarily disable the firewall software for Laplink purposes. If you aren't sure how to disable the firewall software, Technical Document # 252: How to Prevent Background Programs from Starting when Booting Your Computer may allow you to keep the software from loading, but will not work with all firewall software. If disabling the firewall software is not desirable or practical, click the name of the firewall for more information on configuring it to allow LapLink Connections.

These executables send data through the firewall:
LAPLINK.EXE - LapLink application
LLSERVERMAIN.EXE - LapLink web server
SERVERPROXY.EXE - Laplink Everywhere (Gold 11.5 and higher only)

Note 1: Both Internet and LAN connections will require disabling or configuring software firewall.

Note 2: In cases where your computer is protected by a hardware firewall/router appliance as well as software, consider completely uninstalling the firewall software. In most cases, the hardware firewall will provide all the protection you need.

McAfee Personal Firewall
Norton Personal Firewall
Zone Alarm
Windows XP Internet Connection Firewall
Windows XP Firewall (SP2)
BlackICE Defender
AtGuard Personal Firewall

Axent Raptor
CheckPoint Firewall -1
Cisco Pix
ComSocks Proxy server
ConSeal PC Personal Firewall
Gauntlet Firewall

Routers:

Personal Firewall Software:

Other Firewalls:

Alternatives to Port Forwarding:

• Laplink Gold 12’s new 'Connect over Laplink Internet' service circumvents most firewalls and routers by creating a persistent connection to the Laplink Internet servers. Laplink Internet is a subscription service, but the initial year is provided free of charge when you purchase Laplink Gold 12. Read more about Laplink Gold 12’s functions & features.
• Laplink Gold 11.5’s 'Connect over Laplink Everywhere' service no longer functions. You will need to upgrade to Laplink Gold 12 in order to connect without modificaitons to router/firewall.
• Laplink Gold 11’s Firewall Service is for use when configuration of a firewall or router on the host end is not an option.

Note: Both of these services will allow for connections to multiple Laplink host computers behind a firewall or NAT router on the host.

The following TCP ports are used for inbound and outbound connections:

More Detailed Information:

• TCP Port 1547 (inbound for host, outbound for guest): LapLink uses this 'listen port' to connect to other LapLink computers across the Internet. It is not sufficient to merely allow this port through on the firewall or router. This port must be forwarded to the internal IP address of the Laplink computer behind the router. If you plan to have more than one Laplink host available behind the same router, please see Technical Document #618: Changing the Firewall or Router Port used by LapLink Gold 11 for more information.
• TCP Port 389 (outbound): LapLink uses this port to publish its unique name to the ILS server, and to search for other LapLink computers.
• TCP Ports 8443 and 8444 (inbound and outbound): Laplink Switch & Sync, Laplink PCsync 5, and LapLink FileMover use these ports to establish a connection. 8444 is standard port and 8443 is a secure port.
• Any TCP port greater than 1024 (outbound): LapLink uses this port to confirm that its unique name is published to the ILS server. NOTE: The Laplink ILS server is no longer available.
• TCP Port 1184 (inbound and outbound): LapLink uses this port to listen for Surf Up requests. It is not sufficient to merely allow this port through on the firewall or router. This port must be forwarded to the internal IP address of the Laplink computer behind the router. See Technical Document # 632: How to Surf Up to a Computer Running LapLink Gold 11 Behind a Router or Firewall. Note: The Surf Up feature is only available in LapLink Gold 11.0, 11.2, and 11.3.
• TCP Port 1183 (inbound and outbound): Used for all SSL (secure) Surf up connections. Note: The Surf Up feature is only available in LapLink Gold 11.0, 11.2, and 11.3.

Product: Switch and Sync
KB: 633  Last updated: Oct 15, 2007
Keywords: Security: Firewall  Security: Internet  Connections: Internet  Network: Router  Internet: Firewalls  Internet: Router  Internet: ILS  Internet: NAT 
Platforms:

• WinXP
• WinMe
• Win98/SE
• WinNT
• Win2K
• Win95

Wildcards (internal use):

• Security
• Firewall