You want to use a hostname instead of an IPAddress as a connection string using dbisql for connecting to IQ server.
SAP IQ 16.x
"dbisql"; "connection string"; "myip"; "-host"; "/etc/hosts"; , KBA , BC-SYB-IQ , Sybase IQ , BW-SYS-DB-IQ , BW on HANA with Sybase IQ Near-line Storage , How To
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