Allied Telesis AT-S63 - Manual (Page 559)

AT-S63 Management Software Command Line Interface User’s Guide
Section VII: Internet Protocol Routing 559
Pinging a Remote Device
This function is used to validate the existence of an active path between
the switch and another network node. The switch can ping a device if there
is a routing interface on the local subnet from where it reaches the device.
In previous versions of the AT-S63 management software, the device to
be pinged had to be reached through the management VLAN of the
switch. This restriction no longer applies. A remote device can be pinged
through any subnet of the switch, so long as the subnet has an interface.
DHCP or BOOTP Server
You can use a DHCP or BOOTP server to assign IP addresses to the
interfaces of a switch. To receive its IP configuration from a DHCP server,
an interface must be able to directly reach the server. The switch does not
support the DHCP Relay Agent and will not forward DHCP client requests
from DHCP clients, including requests from other interfaces.
Local Interface
The local interface is used with the enhanced stacking feature. It is also
used with remote management of a switch with a Telnet or SSH client, or a
web browser. The local interface does the following:
ˆ With an enhanced stack, it designates on the master switch the
common VLAN and subnet that interconnects the switches of the
stack. The master switch uses the local interface to send out its
broadcast packets when searching for other switches in a stack.
ˆ With remote management, it designates the VLAN and subnet from
where the remote management workstation will access the switch. The
switch uses the local interface to watch for the management packets
from the remote workstation and to send packets back to the remote
station.
For example, assume you wanted to remotely manage a switch that had
four subnets and four interfaces named VLAN4-0, VLAN11-0, VLAN12-0,
and VLAN12-1, and the remote workstation was reaching the switch
through the subnet of the VLAN11-0 interface. To be able to remotely
manage the switch you would need to designate the VLAN11-0 interface
as the local interface on the unit.
A switch can have only one local interface.
For background information on enhanced stacking and remote
management of a switch, refer to the AT-S63 Management Software
Menus Interface User’s Guide.