To simplify configuration, particularly in large networks, BIG-IP® WOM® performs two types of discovery.
Dynamic discovery is a process through which WAN Optimization Manager™ (WOM®) identifies and adds remote endpoints automatically. The process occurs when the BIG-IP® WOM receives traffic that is matched by a virtual server with an iSession™ profile, but does not recognize the remote destination. When a BIG-IP WOM receives a request destined for a location on the network behind the BIG-IP WOM on the other side of the WAN, the first BIG-IP WOM sends out TCP options or ICMP probes to discover, authenticate, and initiate communication with the new remote endpoint.
|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
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.|
An advertised route is a subnet that can be reached through a WAN Optimization Manager™ (WOM®). After the WAN Optimization Managers in a pair have been configured and connected, they automatically exchange advertised route specifications between the endpoints. The local endpoint needs to advertise the subnets to which it is connected so that the remote endpoint can determine the destination addresses for which traffic can be optimized. Advertised routes configured on the local endpoint become remote advertised routes on the remote endpoint; that is, the BIG-IP® WOM on the other side of the WAN.
When a BIG-IP WOM device is deployed in a large scale network with large number of servers, and many of them belong to different subnets, manually configuring local optimization subnets can be very time consuming. Subnet Discovery is designed to ease such configuration challenges. With local subnet discovery, instead of requiring manual configuration of local subnets for traffic optimization, the BIG-IP WOM system automatically discovers the local optimization subnet when traffic flows from the client side BIG-IP WOM device to a server-side BIG-IP WOM device.
|Repeat||Save this route and add more advertised routes.|
|Finished||You have finished adding advertised routes.|