82
Figure 28 Network diagram
Procedure
1. Configure Switch A:
# Specify an IP address for VLAN-interface 2.
<SwitchA> system-view
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ip address 10.1.1.1 24
[SwitchA-Vlan-interface2] quit
# Exclude an IP address from dynamic allocation.
[SwitchA] dhcp server forbidden-ip 10.1.1.2
# Configure DHCP address pool 0. Specify the subnet, lease duration, DNS server address,
and a static route to subnet 20.1.1.0/24.
[SwitchA] dhcp server ip-pool 0
[SwitchA-dhcp-pool-0] network 10.1.1.0 mask 255.255.255.0
[SwitchA-dhcp-pool-0] expired day 10
[SwitchA-dhcp-pool-0] dns-list 20.1.1.1
[SwitchA-dhcp-pool-0] option 121 hex 18 14 01 01 0A 01 01 02
[SwitchA-dhcp-pool-0] quit
# Enable DHCP.
[SwitchA] dhcp enable
2. Configure Switch B:
# Configure VLAN-interface 2 to use DHCP for IP address acquisition.
<SwitchB> system-view
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ip address dhcp-alloc
[SwitchB-Vlan-interface2] quit
Verifying the configuration
# Display the IP address and other network parameters assigned to Switch B.
[SwitchB-Vlan-interface2] display dhcp client verbose
Vlan-interface2 DHCP client information:
Current state: BOUND
Allocated IP: 10.1.1.3 255.255.255.0
Allocated lease: 864000 seconds, T1: 331858 seconds, T2: 756000 seconds
Lease from May 21 19:00:29 2012 to May 31 19:00:29 2012
DHCP server: 10.1.1.1
Transaction ID: 0xcde72232
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