C
HAPTER
2
| Initial Switch Configuration
Basic Configuration
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To automatically configure the switch by communicating with BOOTP or
DHCP address allocation servers on the network, complete the following
steps:
1. From the Global Configuration mode prompt, type “interface vlan 1” to
access the interface-configuration mode. Press <Enter>.
2. At the interface-configuration mode prompt, use one of the following
commands:
■
To obtain IP settings via DHCP, type “ip address dhcp” and press
<Enter>.
■
To obtain IP settings via BOOTP, type “ip address bootp” and press
<Enter>.
3. Type “end” to return to the Privileged Exec mode. Press <Enter>.
4. Wait a few minutes, and then check the IP configuration settings by
typing the “show ip interface” command. Press <Enter>.
5. Then save your configuration changes by typing “copy running-config
startup-config.” Enter the startup file name and press <Enter>.
Console(config)#interface vlan 1
Console(config-if)#ip address dhcp
Console(config-if)#end
Console#show ip interface
Vlan 1 is Administrative Up - Link Up
Address is B4-0E-DC-34-E6-3C (bia B4-0E-DC-34-E6-3C)
Index: 1001, MTU: 1500, Bandwidth: 1g
Address Mode is DHCP
IP Address: 192.168.0.5 Mask: 255.255.255.0
Proxy ARP is disabled
Console#copy running-config startup-config
Startup configuration file name []: startup
\Write to FLASH Programming.
\Write to FLASH finish.
Success.
OBTAINING AN IPV6 ADDRESS
Link Local Address — There are several ways to configure IPv6 addresses.
The simplest method is to automatically generate a “link local” address
(identified by an address prefix in the range of FE80~FEBF). This address
type makes the switch accessible over IPv6 for all devices attached to the
same local subnet.
To generate an IPv6 link local address for the switch, complete the
following steps:
1. From the Global Configuration mode prompt, type “interface vlan 1” to
access the interface-configuration mode. Press <Enter>.
2. Type “ipv6 enable” and press <Enter>.
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