The SYGWHOST macro is part of the SYGWXCPH global customization module. This macro is used only for the Client Option in connections from the mainframe to other applications. It is required only if you are using a TCP/IP driver, in which case you must configure SYGWHOST to define the mapping between Sybase server names and TCP/IP addresses or host names. Do not depend on the default shipped with the installation to work in your environment.
