Allied Telesis AT-S24 - Manual (Page 40)

Managing a Switch
40
Configuring the Switch IP Parameters
In a TCP/IP network, the Ethernet switch requires a set of IP parameters,
such as a unique IP address and subnet mask. The switch obtains its IP
parameters in one of the following ways:
❑ You assign the IP parameters with Omega using the procedure
described in this section.
❑ The switch obtains its IP parameters from a BootP or DHCP server.
If you have BootP or DHCP, the switch can obtain its IP parameters from
the BootP or DHCP server during startups. In this case, you simply
connect the switch to the network.
The function of the BootP or DHCP utility within an IP server is to provide
IP parameters, including an IP address, to the switch. Whenever you
reset or power on and off the switch, the switch transmits a request
packet to the server every three seconds to obtain the required IP
parameters.
The switch makes three request attempts. If the requesting switch does
not receive a BootP or DHCP response after the third request, it will
operate with a computed pseudo IP address based on the switch MAC
address.
If the switch receives a response from the BootP or DHCP server, the
switch extracts the IP address, Subnet Mask, or Gateway/Router address
and uses these parameters to configure itself until the next power-on or
reset. Additionally, if the BootP response packet specifies a filename and
a server address, then the switch sends a request to the server using the
specified filename. This initiates a download of the operating software
and allows you to maintain the downloaded software on your server.
This section contains the procedure for configuring the IP parameters on
a switch. This procedure is appropriate if the switch is in a TCP/IP
network.