We would like to grant to only a well known range of IP address access to TCPIP PORT
TCP/IP uses the SERVAUTH resource class to protect TCP/IP
resources from unauthorized access. There are 4 functions protected by the
SERVAUTH class. They are:
Stack Access - control which users can get access to the TCP/IP stack.
Resource name: EZB.STACKACCESS.sysname.tcpipid
Net Access - control which users can access individual networks.
Resource name: EZB.NETACCESS.sysname.tcpipid.netname
Port Access - control which users can use TCP and UDP ports.
Resource name: EZB.PORTACCESS.sysname.tcpipid.portname
TN3270 - control which users can use the secured ports.
Resource name: EZB.TN3270.sysname.tcpipid.PORTnnnn
where: sysname is the name of the system
tcpipid is the name of the of the TCP/IP started task
netname is the network name in PROFILE.TCPIP
portname is the port name in PROFILE.TCPIP
nnnnn is the port number with leading zero's