Allied Telesis AT-S25 - Manual (Page 42)

Section II: Local and Telnet Mangement
42
When Does a Switch Need an IP Address?
If you want to remotely manage an AT-8300 Series stack, you must
assign it an IP address. The IP address is assigned to the Master switch of
the stack and is shared by all the switches in the stack.
When you assign a stack an IP address, you must also assign it a subnet
mask. The stack uses the subnet mask to determine which portion of an
IP address represents the network address and which the node address.
You must also assign the stack a gateway address if there is a router
between the stack and the remote management workstation. This
gateway address is the IP address of the router through which the stack
and management station will communicate.
If you do not intend to remotely manage an AT-8300 Series stack, then
you do not need to assign it an IP address. The stack will operate fine
without an IP address and you will still be able to manage it completely
from a local management session.
How Do You
Assign an IP
Address?
Once you have decided which, if any, stacks on your network need an IP
address, you have to access the AT-S25 software and assign the
addresses. There are actually two ways in which an AT-8300 Series stack
can obtain an IP address.
The first method is for you to assign the IP configuration information
manually. The procedure for this is explained in Configuring an IP
Address and Switch Name on page 45. Initially assigning an IP address
to a switch can only be done through a local management interface.
The second method is for you to activate the BOOTP and DHCP services
on the stack and have the stack automatically download its IP
configuration information from a BOOTP or DHCP server on your
network. This procedure is explained in Activating the BOOTP and
DHCP Services on page 46.