Sybase DC35823-01-1500-04 manual IPv6 support, Understanding IPv6

CHAPTER 5 Setting Up Communications Across the Network

The following example shows how to configure a backup network that will be used only if the normal connection fails. The primary network is “corporate network” and backup is “engineering network.”

#PRODUCTION server with two network listeners PRODUCTION<tab>3<tab>3<newline> <tab>master tcp ether SERV_CORPNET 4559 <tab>master tcp ether SERV_ENGNET 5479 <tab>query tcp ether SERV_CORPNET 4559 <tab>query tcp ether SERV_ENGNET 5479

3Configure PC-client interfaces files with the appropriate multiple “query” entries, as described in the Open Client documentation. For client interfaces files in a homogeneous environment, you can copy the entire interfaces file entry for the Adaptive Server into the client interfaces file.

4A connection on the secondary port occurs only if the corporate network is disabled, or if the corporate network interface on the host machine fails or is shut down due to a network-related failure.

IPv6 support

Adaptive Server supports IPv6 technology.

Understanding IPv6

IPv6 addressing terminology:

•Link-local address – an IPv6 address that is usable only over a single link.

•Site-local address – an IPv6 address that can be used within a single-site.

•Global address – an IPv6 address that can be used across the global Internet.

IPv6 application types:

•IPv6-unaware – an application that cannot handle IPv6 addresses.

•IPv6-aware – an application that can communicate with nodes that do not have IPv4 addresses. In some cases, this might be transparent to the application, for instance when the API hides the content and format of the actual addresses.

Configuration Guide 63