IPv4 and IPv6
Managing WebLogic SIP Server Network Resources
To enable UDP, TCP, or TLS transports, you configure one or more network channels for a WebLogic SIP Server instance. A network channel is a configurable WebLogic Server resource that defines the attributes of a specific network connection to the server instance. Basic channel attributes include:
• The protocols supported by the connection
• The listen address( DNS name or IP address) of the connection
• The port number used by the connection
•( optional) The port number used by outgoing UDP packets
• The public listen address( load balancer address) to embed in SIP headers when the channel is used for an outbound connection.
You can assign multiple channels to a single WebLogic SIP Server instance to support multiple protocols or to utilize multiple interfaces available with multihomed server hardware. You cannot assign the same channel to multiple server instances.
When you configure a new network channel for the SIP protocol, both the UDP and TCP transport protocols are enabled on the specified port. You cannot create a SIP channel that supports only UDP transport or only TCP transport. When you configure a network channel for the SIPS protocol, the server uses the TLS transport protocol for the connection.
As you configure a new SIP Server domain, you will generally create multiple SIP channels for communication to each engine tier server in your system. Engine tier servers can communicate to data tier replicas using the configured Listen Address attributes for the replicas. Note, however, that replicas must use unique Listen Addressees in order to communicate with one another.
Note:
If you configure multiple replicas in a data tier cluster, you must configure a unique Listen Address for each server( a unique DNS name or IP address). If you do not specify a unique Listen Address, the replica service binds to the default“ localhost” address and multiple replicas cannot locate one another.
IPv4 and IPv6
If your operating system and hardware support IPv6, you can also configure WebLogic SIP Server to use IPv6 for network communication. IPv6 for SIP traffic is enabled by configuring a network channel with an IPv6 address. You must configure an IPv6 SIP channel on each engine tier server that will support IPv6 traffic.
1-2 Configuring Network Resources