You define bind-time security in the CONNECTION definition, although you must also choose the appropriate system initialization parameters. Figure 1 shows how to define APPC external session security, for which you need to specify the BINDSECURITY option.
CEDA DEFINE CONNECTION(name)
GROUP(groupname)
ACCESSMETHOD(VTAM)
SECURITYNAME(name)
PROTOCOL(APPC)
NETNAME(name)
BINDSECURITY(YES)