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Manual Chapter: Endpoints
Manual Chapter
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About endpoints

For a BIG-IP® device, the local endpoint is the WAN Optimization Manager™ (WOM®) on the system where you are working. The remote endpoint is the WAN Optimization Manager on another BIG-IP system (on the other side of the WAN), with which the local endpoint interacts. After you identify the endpoints, communication between the WAN Optimization Managers takes place in an iSession™ connection between the two BIG-IP WOM devices.

About dynamic discovery of remote endpoints

Dynamic discovery is a process through which WAN Optimization Manager™ (WOM®) identifies and adds remote endpoints automatically. The process occurs when the WOM receives traffic that matches a virtual server with an iSession profile, but does not recognize the remote destination. When a WOM receives a request destined for a location on the network behind the WOM (on the other side of the WAN), the first WOM sends out TCP options or ICMP probes to discover, authenticate, and initiate communication with the new remote endpoint.
Important: To use dynamic discovery of remote endpoints, you must select none for the IP Encapsulation Type setting on the Quick Start or Local Endpoint screen.

Modifying dynamic discovery of remote endpoints

You can modify the dynamic discovery settings, such as specifying the number and types of probe messages, or disabling dynamic discovery.
  1. On the Main tab, click WAN Optimization > Remote Endpoints > Discovery.
  2. From the Dynamic Discovery list, select Advanced to view all the settings.
  3. Modify the settings, as required.
  4. Click Update to save changes.

Manually adding remote endpoints for WAN optimization

If the BIG-IP® WOM®unit is located behind a firewall or you are working in a highly secure facility and dynamic discovery does not work in your networking environment, you can manually add one or more remote endpoints.
  1. On the Main tab, click WAN Optimization > Remote Endpoints.
  2. Click the Create button.
  3. In the Name field, type a descriptive name for the remote endpoint, such as site_B.
  4. In the IP Address field, type the IP address that the local endpoint uses to communicate with the remote BIG-IP WOM.
  5. For the State setting, specify whether optimization can occur between the local and remote endpoints. If you disable this setting after traffic is flowing, existing connections continue until they are completed.
  6. For the Outbound Connections setting, specify whether there is a route through which the local endpoint can establish connections with this remote endpoint.
  7. From the Authentication and Encryption list, select the name of the SSL profile used to connect to this remote endpoint. Any setting other than Default overrides the Outbound iSession to WAN setting on the local endpoint.
  8. In the Tunnel Port field, type the number of the port on the remote endpoint that BIG-IP WOM uses for control connections. You must specify a port that is allowed access through the firewall. The range is from 1 to 65535.
  9. From the SNAT list, select the address the system uses as the source IP address of the TCP connection between the BIG-IP WOM and the server. Select one of the following options:
    Option Description
    Default Indicates that the system uses the SNAT value set for the local endpoint.
    None Indicates that the system uses the original connecting client IP address.
    Local Indicates that the system uses the endpoint IP address closest to the destination. Use this setting to make sure the return route also goes through the BIG-IP system so that both sides of the connection can be optimized.
    Tip: This setting is useful if responses returning from the server to the client would not normally pass through the BIG-IP system.
    Remote Indicates that the system uses the source IP address of the incoming iSession connection. Use this setting when an appliance that uses NAT is located between the WOM endpoints.
  10. Click Finished.
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