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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 1 Overview
Default Settings After Initial Switch Configuration
Note For information about assigning an IP address by using the browser-based Express Setup program, see
the getting started guide. For information about assigning an IP address by using the CLI-based setup
program, see the hardware installation guide.
If you do not configure the switch at all, the switch operates with these default settings:
• Default switch IP address, subnet mask, and default gateway is 0.0.0.0. For more information, see
Chapter 3, “Assigning the Switch IP Address and Default Gateway,” and Chapter 22, “Configuring
DHCP Features and IP Source Guard.”
• Default domain name is not configured. For more information, see Chapter 3, “Assigning the Switch
IP Address and Default Gateway.”
• DHCP client is enabled, the DHCP server is enabled (only if the device acting as a DHCP server is
configured and is enabled), and the DHCP relay agent is enabled (only if the device is acting as a
DHCP relay agent is configured and is enabled). For more information, see Chapter 3, “Assigning
the Switch IP Address and Default Gateway,” and Chapter 22, “Configuring DHCP Features and IP
Source Guard.”
• Switch stack is enabled (not configurable). For more information, see Chapter 5, “Managing Switch
Stacks.”
• Switch cluster is disabled. For more information about switch clusters, see Chapter 6, “Clustering
Switches,” and the Getting Started with Cisco Network Assistant, available on Cisco.com.
• No passwords are defined. For more information, see Chapter 7, “Administering the Switch.”
• System name and prompt is Switch. For more information, see Chapter 7, “Administering the
Switch.”
• NTP is enabled. For more information, see Chapter 7, “Administering the Switch.”
• DNS is enabled. For more information, see Chapter 7, “Administering the Switch.”
• TACACS+ is disabled. For more information, see Chapter 9, “Configuring Switch-Based
Authentication.”
• RADIUS is disabled. For more information, see Chapter 9, “Configuring Switch-Based
Authentication.”
• The standard HTTP server and Secure Socket Layer (SSL) HTTPS server are both enabled. For more
information, see Chapter 9, “Configuring Switch-Based Authentication.”
• IEEE 802.1x is disabled. For more information, see Chapter 10, “Configuring IEEE 802.1x
Port-Based Authentication.”
• Port parameters
–
Operating mode is Layer 2 (switchport). For more information, see Chapter 11, “Configuring
Interface Characteristics.”
–
Interface speed and duplex mode is autonegotiate. For more information, see Chapter 11,
“Configuring Interface Characteristics.”
–
Auto-MDIX is enabled. For more information, see Chapter 11, “Configuring Interface
Characteristics.”
Note In releases earlier than Cisco IOS Release 12.2(18)SE, the default setting for
auto-MDIX is disabled.
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