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Install and configure the ATM ARP/MARS service

Updated: January 21, 2005

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

To install and configure the ATM ARP/MARS service

  1. Open Network Connections.

  2. Click the ATM connection that corresponds to the ATM network adapter installed on this computer.

  3. On the File menu, click Properties, and then click Install.

  4. In Select Network Component Type, in the list of network component types, click Protocol, and then click Add.

  5. In Select Network Protocol, in the list of network protocols, click ATM ARP/MARS Service, and then click OK.

    The ATM ARP/MARS service is installed with a default configuration. For more information on modifying these default services, see the notes below or see your ATM networking and product documentation.


  • To perform this procedure, you must be a member of the Administrators group on the local computer.

  • To open Network Connections, click Start, click Control Panel, and then double-click Network Connections.

  • The ATM ARP/MARS service is not available on Windows XP.

  • It is recommended that you configure only one ATM ARP/MARS for each virtual local area network (VLAN) on your network. If you have multiple ARP servers on the same network segment, and your ARP client is configured with the addresses for these servers, the ARP caches could become out of synch. This can render parts of the network unreachable.

  • The ATM ARP/MARS service supports IP-to-ATM address resolution for ATM network hosts active on the same logical IP subnet as this computer. The ATM ARP service supports classical IP over ATM connections, as described in RFC 2225. The MARS service supports multicast IP over ATM connections, as described in RFC 2022.

  • By default, this predetermined address is used for simple configuration: 4700790001020000000000000000A03E00000200. This number is an NSAP address that Microsoft selected to simplify configuration and enhance interoperability of the ATM ARP/MARS service with other computers running ATM services.

  • The ATM ARP/MARS service includes a preconfigured default list of IP address ranges for which broadcast and multicast forwarding are provided by the service. This default is known as hubbed mode operation. If the IP address range list is empty, the ATM ARP/MARS service defaults to nonhubbed mode operation. In this mode, the service will not perform any forwarding for multicast group clients.

Information about functional differences

  • Your server might function differently based on the version and edition of the operating system that is installed, your account permissions, and your menu settings. For more information, see Viewing Help on the Web.

See Also

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