The following typical IPv4 network services in the current Oracle Solaris release are IPv6 ready:
HTTP (Apache 2.x or Orion)
The IMAP mail service is for IPv4 only.
Nodes that are configured for IPv6 can run IPv4 services. When you turn on IPv6, not all services accept IPv6 connections. Services that have been ported to IPv6 will accept a connection. Services that have not been ported to IPv6 continue to work with the IPv4 half of the protocol stack.
Some issues can arise after you upgrade services to IPv6. For details, see Problems After Upgrading Services to IPv6.