IP Configuration
IPv4 Management and Interfaces
284 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
16
• UDP Relay/IP Helper
• DHCP Snooping/Relay
•DHCP Server
IPv4 Interface
To manage the device by using the web-based configuration utility, the IPv4 device
management IP address must be defined and known. The device IP address can be manually
configured or automatically received from a DHCP server.
The IPv4 Interface page is used to configure IP addresses for device management. This IP
address can be configured on a port, a LAG, VLAN, loopback interface or out-of-band
interface.
You can configure multiple IP addresses (interfaces) on the device. It then supports traffic
routing between these various interfaces and also to remote networks. By default and typically,
the routing functionality is performed by the hardware. If hardware resources are exhausted or
there is a routing table overflow in the hardware, IP routing is performed by the software.
Hardware routing provides wire-speed Layer 3 traffic forwarding and software routing is
limited by CPU capabilities and other tasks being performed by the software.
NOTE The device software consumes one VLAN ID (VID) for every IP address configured on a port
or LAG. The device takes the first VID that is not used starting from 4094.
To configure the IPv4 addresses:
STEP 1 Click IP Configuration > IPv4 Management and Interfaces > IPv4 Interface.
Enter the following fields:
• IPv4 Routing—Check the Enable box to enable IPv4 routing (enabled by default).
• Hardware Based Routing—Displays whether hardware-based routing is currently
active or whether software-based routing has been activated.
If hardware-based routing is not active, click the Reactivate Hardware Based Routing
button to enable it. Activation of hardware-based routing depends on the hardware resources
that are available to support the current routing configuration.
STEP 2 Click Apply. The parameter is saved to the Running Configuration file.
The following fields are displayed in the IPv4 Interface Table:
• Interface—Unit/Interface for which the IP address is defined. This can also be the out-
of-band port.
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