Preparation for your network environment
To prepare for your network environment, you need to identify and comply with the minimum network configuration required to set up an 5250 Console local console on a network (LAN) configuration.
If your system is new and you chose a local console on a network configuration, the adapter is already allocated for use by the system. The LAN adapter is dedicated for service tools. It is suggested that you restrict LAN topologies for LAN-attached local consoles to a single, physical ring, hub, switch, or router environment. If the local console on a network is used in a larger network topology, it is suggested that you use broadcast (DHCP) packet filtering. This might be as simple as connecting the PC and system using an inexpensive hub or router. Temporarily, you could also use an Ethernet cable (when using a 2849 adapter). When you have only a single PC or few devices connected to the system using a hub, and these devices do not connect to another network or the Internet, you can then use any numeric numbers for addresses, for example, 1.1.1.x or 10.220.215.x (where x can be 2 through 254, but avoid x.x.x.1, which might cause problems in some hubs). However, if you have a network that many users share, or in which the devices are connected to the Internet, consult a network administrator for addresses.
Network security
Implementing some sort of physical security of the console over a LAN connection
is critical. For instance, consider configuring a local console on a network separate from the main
network (or the company intranet) and strictly controlling access to the PC that acts as the
console.