3Com 3031 Command Reference Manual page 437

Description
Using the dhcp relay release command, you can send an IP address releasing
request to a DHCP server via the DHCP relay.
Given no IP address of DHCP server has been specified, release packets will be sent
either to all the DHCP servers if this command is configured in system view or to all
the relay addresses configured on an interface if this command is configured in the
interface view.
Example
Send a release packet to the DHCP server at 10.110.91.174, requesting to release
the IP address 192.2.2.25, which was offered to the client whose MAC address is
0050-ba34-2000.
[3Com] dhcp relay release 192.2.2.25 0050-ba34-2000 10.110.91.174
display dhcp relay Syntax
address
display dhcp relay address [ interface interface-name | all ]
View
Any view
Parameter
Description
Using the display dhcp relay address command, you can view the DHCP relay
address configuration of an interface.
For the related commands, see ip relay address and ip relay address interface.
Example
View the DHCP relay address configurations of all the interfaces.
<3Com> display dhcp relay address all
display dhcp relay Syntax
statistics
display dhcp relay statistics
View
Any view
Parameter
None
server-ip: IP address of the DHCP server.
interface-name: Specifies an interface name, which is represented by interface
type plus interface number.
all: All the interfaces.
** Ethernet11/2/0 DHCP Relay Address
Relay Address [0] :
DHCP Relay Configuration Commands
**
3.3.3.3
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