Replication Server includes IPv4 and IPv6 versions of the SySAM license server software. You can choose the version of the license server based on your environment using the sysam configure command. By default, the installer configures SySAM for IPv4 support.
The IPv4 version of the license server cannot be used properly if you have enabled IPv6 on the license server host. If this is the case you can:
Disable IPv6 TCP/IP protocol on the license server host.
Use another Windows host that does not have IPv6 enabled.
Use a UNIX host for the license server. You can use the IPv4 version of the license even if both IPv4 and IPv6 are enabled on UNIX.
If you are using the IPv6 version of the license server on a Windows host, then this license server can be accessed only through IPv6 protocol. Any host with an IPv4 only network stack will not be able to obtain licenses from this IPv6 license server. To resolve this issue:
Use a UNIX host for the license server. License servers on UNIX are able to serve licenses to both IPv4 and IPv6 client hosts.
If you need to use a Windows host for the license server and have both IPv4 and IPv6 clients to the license server, setup two license servers one serving the IPv4 network and the other serving the IPv6 network.
You can use the SySAM script to configure the appropriate version of the license server:
sysam configure [IPv6|IPv4]
For example, this command configures use of the IPv4/IPv6 dual stack binaries:
sysam configure IPv6
