Allied Telesis at-8516f User Guide
16
Rapier Switch User Guide
Software Release 2.6.1
C613-02025-00 REV C
C613-02025-00 REV C
If IP addresses on your LAN are assigned dynamically by DHCP, you can set
the switch to request an IP address from the DHCP server, using the
commands:
the switch to request an IP address from the DHCP server, using the
commands:
ADD IP INTERFACE=vlan1 IPADDRESS=DHCP
ENABLE IP REMOTEASSIGN
You do not need to set the MASK parameter because the subnet mask received
from the DHCP server is used.
from the DHCP server is used.
If you use DHCP to assign IP addresses to devices on your LAN, and you want to
manage the switch within this DHCP regime, it is recommended that you set your
DHCP server to always assign the same IP address to the switch. This will enable you
to access the GUI by browsing to that IP address, and will also let you use the switch as
a gateway device for your LAN. If you need the switch's MAC address for this, it can be
displayed using the command SHOW SWITCH.
manage the switch within this DHCP regime, it is recommended that you set your
DHCP server to always assign the same IP address to the switch. This will enable you
to access the GUI by browsing to that IP address, and will also let you use the switch as
a gateway device for your LAN. If you need the switch's MAC address for this, it can be
displayed using the command SHOW SWITCH.
To change the IP address for an interface, enter the command:
SET IP INTERFACE=interface IPADDRESS=ipadd MASK=ipadd
When you are configuring the switch remotely, if you change the configuration (for
example, the VLAN membership) of the port over which you are configuring, the switch
is likely to break the connection.
example, the VLAN membership) of the port over which you are configuring, the switch
is likely to break the connection.
For more information about switch ports and Virtual LANs (VLANs), see
Chapter 5, Layer 2 Switching in this document, and the Switching chapter in the
Rapier Series Switch Software Reference. For more information about IP
addressing and routing, see Chapter 6, Layer 3 in this document, and the Internet
Protocol (IP) chapter in the Rapier Series Switch Software Reference.
Chapter 5, Layer 2 Switching in this document, and the Switching chapter in the
Rapier Series Switch Software Reference. For more information about IP
addressing and routing, see Chapter 6, Layer 3 in this document, and the Internet
Protocol (IP) chapter in the Rapier Series Switch Software Reference.
Setting Routes
The process of routing packets consists of selectively forwarding data packets
from one network to another. Your switch makes a decision to send a packet to
a particular network on information it learns dynamically from listening to the
selected route protocol and on the static information entered as part of the
configuration process. In addition, you can configure user-defined filters to
restrict the way packets are sent.
from one network to another. Your switch makes a decision to send a packet to
a particular network on information it learns dynamically from listening to the
selected route protocol and on the static information entered as part of the
configuration process. In addition, you can configure user-defined filters to
restrict the way packets are sent.
Your switch maintains a table of routes which holds information about routes
to destinations. The route table tells the switch how to find a remote network or
host. A route is uniquely identified by IP address, network mask, next hop,
ifIndex, protocol and policy. A list of routes comprises all the different routes to
a destination. The routes may have different metrics, next hops, policy or
protocol. A list of routes is uniquely identified by its IP address and net mask.
to destinations. The route table tells the switch how to find a remote network or
host. A route is uniquely identified by IP address, network mask, next hop,
ifIndex, protocol and policy. A list of routes comprises all the different routes to
a destination. The routes may have different metrics, next hops, policy or
protocol. A list of routes is uniquely identified by its IP address and net mask.
The routing table is maintained dynamically by using one or more routing
protocols such as RIP, EGP and OSPF. These act to exchange routing
information with other switches or hosts.
protocols such as RIP, EGP and OSPF. These act to exchange routing
information with other switches or hosts.
You can also add static routes to the route table to define default routes to
external switches or networks and to define subnets.
external switches or networks and to define subnets.