B&B Electronics, Inc.
SPECTRE Configuration Manual
18
710-10001-02 Rev. 3.0
www.bb-elec.com
www.bb-europe.com
1.8. LAN configuration
Select the
LAN
menu item to enter the network configuration for the Ethernet ports. The
main Ethernet port,
ETH
, is setup in the
Primary LAN
section. If the router has additional
Ethernet ports (
PORT1
or
PORT2
), they are configured under the
Secondary LAN
section. For
routers with 2 additional Ethernet ports,
PORT1
and
PORT2
are automatically bridged together.
Item
Description
DHCP Client
disabled
– The router will not obtain an IP address automatically
from a DHCP server on the network.
enabled
– The router will attempt to obtain an IP address
automatically from a DHCP server on the network.
IP address
Fixed IP address of the network interface.
Subnet Mask
IP address Subnet Mask for the interface.
Media type
Auto-negotiation
– The router automatically selects the
communication speed of the network interface.
100 Mbps Full Duplex
– The router communicates at 100Mbps,
in full-duplex mode.
100 Mbps Half Duplex - The router communicates at 100Mbps,
in half-duplex mode.
10 Mbps Full Duplex - The router communicates at 10Mbps, in full-
duplex mode.
10 Mbps Half Duplex - The router communicates at 10Mbps, in
half-duplex mode.
Default
Gateway
IP address of Default gateway for the router. When entering IP address
of default gateway, all packets for which the record was not found
in the routing table are sent to this address.
DNS server
IP address of the primary DNS server for the router.
Table 9: Configuration of network interface
The DHCP server assigns the IP address, default gateway IP address, and IP address of
the DNS server to the connected DHCP clients.
The DHCP server supports both static and dynamic assignment of IP addresses. In
Dynamic IP address assignment, the DHCP server will assign a client the next available IP
address from the allowed IP address pool. Once the lease time on an IP address has expired, the
DHCP server is free to re-assign that IP to another client.
Item
Description
Enable dynamic
DHCP leases
Select this option to enable a dynamic DHCP server.
IP Pool Start
Starting IP address of the range allocated to the DHCP clients.
IP Pool End
Ending IP address of the range allocated to the DHCP clients.
Lease time
Time in seconds that the IP address is reserved before it can be re-used.
Table 10: Configuration of a dynamic DHCP server
The DHCP server can also assign a Static IP address to a client. The MAC address of
the client must be configured in the MAC address table along with the desired IP address. Up to
6 static IP addresses are supported. Do not overlap the static IP addresses with the addresses