UDA-SQL-0432 Unable to locate the gateway cogudact

[Cognos8]

I have installed the sysbase ( sybase system 11 - driver name) in c84 application server. from that server i can login to sysbase database to query. then i tried to create datasource  in cognos 84 while doing testing i got the error "UDA-SQL-0432  Unable to  locate the gateway cogudact". Please share your  experience in sysbase datasource creation.

[tupac_rd]

http://www-01.ibm.com/support/docview.wss?rs=3442&context=SS9RTN&q1=%2bUDA-SQL-0432&uid=swg21370987&loc=en_US&cs=utf-8&cc=us&lang=all

[Cognos8]

i have given correct database, datasource and url properly.other than that do i need to check any specific thing? please let me know.