Cabletron Systems SSIM-R8-02 Especificações descarregar pdf (Página 110)

DHCP Configuration Examples

90 Enterasys Xpedition User Reference Manual

10. Specify a database update interval of every 15 minutes.

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.

2. Define the address pool for ‘scope1’.

3. Define the network parameters for ‘scope2’ with the default gateway 10.2.1.1.

4. Define the address pool for ‘scope2’.

5. Create a superscope ‘super1’ that includes ‘scope1’.

6. Include ‘scope2’ in the superscope ‘super1’.

Since there are multiple pools of IP addresses, the pool associated with ‘scope1’ is used

first since ‘scope1’ is applied to the interface before ‘scope2’. Clients that are given an

address from ‘scope1’ will also be given parameters from ‘scope1,’ which includes the

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

dhcp scope1 define pool 10.1.1.10-10.1.1.20

dhcp scope2 define parameters address-netmask 10.2.0.0/16 gateway 10.2.1.1 dns-domain

acme.com dns-server 10.1.77.88

dhcp scope2 define pool 10.2.1.40-10.2.1.50

dhcp scope1 attach superscope super1

dhcp scope2 attach superscope super1

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Cabletron Systems SSIM-R8-02 Especificações Página 110