Riverstone Networks WICT1-12 - Manual (Page 175)

Riverstone Networks RS Switch Router User Guide Release 8.0 10-5
DHCP Configuration Guide Configuring Secondary Subnets
4. Define DHCP network parameters for the scope ‘scope1’.
5. Define an IP address pool for addresses 10.1.1.10 through 10.1.1.20.
6. Define another IP address pool for addresses 10.1.1.40 through 10.1.1.50.
7. Define a static IP address for 10.1.7.5.
8. Define another static IP address for 10.1.7.7. and give it a specific gateway address of 10.1.1.2.
9. Specify a remote lease database on the TFTP server 10.1.89.88.
10. Specify a database update interval of every 15 minutes.
10.5 CONFIGURING SECONDARY SUBNETS
In some network environments, multiple logical subnets can be imposed on a single physical segment. These logical
subnets are sometimes referred to as “secondary subnets” or “secondary networks.” For these environments, the DHCP
server may need to give out addresses on different subnets. The DNS server, DNS domain, and WINS server may be
the same for clients on different secondary subnets, however, the default gateway will most likely be different since it
must be a router on the client’s local subnet.
The following example shows a simple configuration to support secondary subnets 10.1.x.x and 10.2.x.x.
1. Define the network parameters for ‘scope1’ with the default gateway 10.1.1.1.
dhcp scope1 define parameters address-netmask 10.1.0.0/16 gateway
10.1.1.1 lease-time 24 dns-domain acme.com dns-server 10.2.45.67
netbios-name-server 10.1.55.60
dhcp scope1 define pool 10.1.1.10-10.1.1.20
dhcp scope1 define pool 10.1.1.40-10.1.1.50
dhcp scope1 define static-ip 10.1.7.5 mac-address 08:00:20:11:22:33
dhcp scope1 define static-ip 10.1.7.7 mac-address
08:00:20:aa:bb:cc:dd gateway 10.1.1.2
dhcp global set lease-database tftp://10.1.89.88/lease.db
dhcp global set commit-interval 15
dhcp scope1 define parameters address-netmask 10.1.0.0/16 gateway
10.1.1.1 dns-domain acme.com dns-server 10.1.44.55