To Next Page

To Previous Page

42-6

Catalyst 3750-X and 3560-X Switch Software Configuration Guide

OL-21521-01

Chapter 42 Configuring IP Unicast Routing

Configuring IP Addressing

A required task for configuring IP routing is to assign IP addresses to Layer 3 network interfaces to

enable the interfaces and allow communication with the hosts on those interfaces that use IP. These

sections describe how to configure various IP addressing features. Assigning IP addresses to the

interface is required; the other procedures are optional.

• Default Addressing Configuration, page 42-6

• Assigning IP Addresses to Network Interfaces, page 42-7

• Configuring Address Resolution Methods, page 42-9

• Routing Assistance When IP Routing is Disabled, page 42-12

• Configuring Broadcast Packet Handling, page 42-14

• Monitoring and Maintaining IP Addressing, page 42-18

Default Addressing Configuration

Ta ble 42-1 Default Addressing Configuration

Feature Default Setting

IP address None defined.

ARP No permanent entries in the Address Resolution Protocol (ARP) cache.

Encapsulation: Standard Ethernet-st

yle ARP.

Timeout: 14400 seconds (4 hours).

IP broadcast address 255.255.255.255 (all ones).

IP classless routing Enabled.

IP default gateway Disabled.

IP directed broadcast Disabled (all IP directed broadcasts are dropped).

IP domain Domain list: No domain names defined.

Domain lookup: Enabled.

Domain name: Enabled.

IP forward-protocol If a helper address is defined or User Datagram Protocol (UDP) flooding is configured, UDP

for

warding is enabled on default ports.

Any-local-broadcast: Disabled.

Spanning Tree Protocol (STP): Disabled.

Turbo-flood: Disabled.

IP helper address Disabled.

IP host Disabled.

Cisco Catalyst 3750-X User Manual

Other manuals for Cisco Catalyst 3750-X