Displaying And Debugging Arp; Dhcp Configuration; Overview Of Dhcp - 3Com 400 Family Configuration Manual

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HAPTER ETWORK
Displaying and
Debugging ARP

DHCP Configuration

Overview of DHCP

P O
ROTOCOL PERATION
By default, this feature is enabled.
After the above configuration, enter the
the running of the ARP configuration, and to verify the effect of the configuration.
Enter the
debugging
the command in User View to clear ARP mapping table.
reset
Table 82 Displaying and Debugging ARP
Operation
Display the ARP mapping table
Display the current setting of the
dynamic ARP map aging timer
Reset the ARP mapping table
Enable ARP information
debugging
Disable ARP information
debugging
Dynamic Host Configuration Protocol (DHCP) offers dynamic IP address
assignment. DHCP works in Client-Server mode. With this protocol, the DHCP
Client can dynamically request configuration information and the DHCP server can
configure the information for the Client.
The DHCP relay serves as conduit between the DHCP Client and the server located
on different subnets. The DHCP packets can be relayed to the destination DHCP
server (or Client) across network segments. The DHCP clients on different
networks can use the same DHCP server. This is economical and convenient for
centralized management.
A typical DHCP application often contains a DHCP server and several clients
(desktop and laptop PCs). See
display
command in User View to debug ARP configuration. Enter
Command
display arp [ ip_address | [ dynamic | static ] [
| { begin | include | exclude } text ] ]
display arp timer aging
reset arp [ dynamic | static | interface {
interface_type interface_num |
interface_name } ]
debugging arp packet
undo debugging arp packet
Figure 21
command in any view to display