System information

Configuring the Switch
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Using DHCP/BOOTP
If your network provides DHCP/BOOTP services, you can configure the stack to be
dynamically configured by these services.
Web – Click System, IP Configuration. Specify the VLAN to which the management
station is attached, set the IP Address Mode to DHCP or BOOTP. Click Apply to
save your changes. Then click Restart DHCP to immediately request a new
address. Note that the stack will also broadcast a request for IP configuration
settings on each power reset.
Figure 3-7 IPv4 Interface Configuration - DHCP
Note: If you lose your management connection, make a console connection to the
Master unit and enter “show ip interface” to determine the new stack address.
CLI – Specify the management interface, and set the IP address mode to DHCP or
BOOTP, and then enter the “ip dhcp restart” command.
Renewing DCHP – DHCP may lease addresses to clients indefinitely or for a
specific period of time. If the address expires or the stack is moved to another
network segment, you will lose management access to the stack. In this case, you
can reboot the stack or submit a client request to restart DHCP service via the CLI.
Web – If the address assigned by DHCP is no longer functioning, you will not be
able to renew the IP settings via the web interface. You can only restart DHCP
service via the web interface if the current address is still available.
Console#config
Console(config)#interface vlan 1 4-120
Console(config-if)#ip address dhcp 4-222
Console(config-if)#end
Console#ip dhcp restart 4-224
Console#show ip interface 4-224
IP Address and Netmask: 192.168.0.100 255.255.255.0 on VLAN 1,
Address Mode: DHCP
Console#