Cisco Systems DHCP Monitoring

18-8
Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter18 Configuring DHCP
DHCP Monitoring
Note The name of the associated IP Address fields can change based on the DHCP option that you
chose. For example, if you choose DHCP Option 3 (Router), the fields names change to
Router 1 and Router 2.
– Click ASCII to specify that an ASCII value is returned to the DHCP client. In the Data field,
enter an ASCII character string. The string cannot include white spaces.
Note The name of the associated Data field can change based on the DHCP option that you chose.
For example, if you choose DHCP Option 14 (Merit Dump File), the associated Data field
names change to File Name.
– Click Hex to specify that a hexadecimal value is returned to the DHCP client. In the Data field,
enter a hexadecimal string with an even number of digits and no spaces. You do not need to use
a 0x prefix.
Note The name of the associated Data field can change based on the DHCP option you chose. For
example, if you choose DHCP Option 2 (Time Offset), the associated Data field becomes the
Offset field.
Step2 Click OK to close the Advanced DHCP Options dialog box.
Step3 Click Apply to save your changes, or click Reset to discard them and enter new ones.
DHCP Monitoring
To monitor DHCP, perform the following steps:
Path Purpose
Tools > Command Line Interface
Type show running-config dhcpd, then click Send.
Shows the current DHCP configuration.
Tools > Command Line Interface
Type show running-config dhcprelay, then click Send.
Shows the current DHCP relay services status.
Monitoring > Interfaces > DHCP > DHCP Client Lease
Information
Shows configured DHCP Client IP addresses.
Monitoring > Interfaces > DHCP > DHCP Server Table Shows configured dynamic DHCP Client IP addreses.
Monitoring > Interfaces > DHCP > DHCP Statistics Shows DHCP message types, counters, values, directions,
messages received, and messages sent.