REF: Planning Exchange 2010 DAG - Part 2 - MAPI Network

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Network Adapter Configuration for DAGs

(MAPI Network top order and set default gateway/
Each network adapter must be configured properly based on its intended use. A network adapter that's used for a MAPI network is configured differently from a network adapter that's used for a Replication network. In addition to configuring each network adapter correctly, you must also configure the network connection order in Windows so that the MAPI network is at the top of the connection order. For detailed steps to modify the network connection order, see Modify the Protocol Bindings Order.

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MAPI Network Adapter Configuration

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The TCP/IP v4 properties for a MAPI network adapter are configured as follows:

  • The IP address for can be manually assigned or configured to use DHCP. If DHCP is used, we recommend using persistent reservations for server's IP address.
  • The MAPI network typically uses a default gateway, although one isn't required.
  • At least one DNS server address must be configured. Using multiple DNS servers is recommended for redundancy.
  • The Register this connection's addresses in DNS checkbox should be checked.

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Blog Extended Reading


More Information & Reference
1. Planning for High Availability and Site Resilience

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