Quick Reference Guide

DHCP | 131
Configuring a DHCP address pool (required)
You can configure a DHCP address pool with a name that is a symbolic string (such as “Engineering”) or
an integer (such as 0). Configuring a DHCP address pool also places you in DHCP pool configuration
mode, as identified by the “(config-dhcp)#” prompt, from which you can configure pool parameters
(for example, the IP subnet number and default router list). To configure a DHCP address pool, complete
the following required steps. For details on these commands, see the DHCP Server Commands chapter in
the
SFTOS Command Reference.
Excluding IP addresses (optional)
The DHCP server assumes that all IP addresses in a DHCP address pool subnet are available for assigning
to DHCP clients. You must specify the IP address that the DHCP server should not assign to clients.
Use the
ip dhcp excluded-address lowaddress [highaddress] command in Global Config mode to create
partial scopes.
Enabling the SFTOS DHCP Server feature (required)
By default, the SFTOS DHCP Server feature is disabled on the S-Series. Use the service dhcp command in
Global Config mode to enable the SFTOS DHCP Server feature:
Verifying the DHCP Server Configuration
Use the show ip dhcp server statistics command to verify the DHCP server configuration:
Step Command Mode Purpose
1
ip dhcp pool poolname Global Config Creates a name for the DHCP server address pool and
places you in DHCP pool configuration mode (identified
by the “config-dhcp#” prompt).
2 network ip_address mask DHCP Pool Config Configures an IP address and subnet mask for this DHCP
address pool, which contains the range of available IP
addresses that the DHCP server may assign to clients.
3 default-router address1
[address2...address8]
DHCP Pool Config Specifies the default router list for a DHCP client. After a
DHCP client boots, the client begins sending packets to
its default router. The IP address of the default router
must be on the same subnet as the client.
4 dns-server address1
[address2...address8]
DHCP Pool Config Specifies the IP address of a DNS server that is available
to a DHCP client. A single IP address can be configured.
Note: If more than one address is configured, SFTOS
overwrites the configuration with the most recent
address.