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