Configuring and Managing IP Interfaces 105

The DHCP client is enabled by default on an unconfigured WXR100 when the factory reset switch is pressed and held during power on. The DHCP client is disabled by default on all other switch models, and is disabled on a WXR100 if the switch is already configured or the factory reset switch is not pressed and held during power on.

You can enable the DHCP client on one VLAN only.

MSS also has a configurable DHCP server. (See “Configuring the DHCP Server” on page 665.) You can configure a DHCP client and DHCP server on the same VLAN, but only the client or the server can be enabled. The DHCP client and DHCP server cannot both be enabled on the same VLAN at the same time.

How MSS Resolves Conflicts with Statically Configured IP Parameters MSS compares the IP parameter values already configured on the switch with the values received from the DHCP server, and resolves any conflicts as follows:

„IP address—If the VLAN also has a statically configured IP address, MSS uses an address from the DHCP server instead of the statically configured address.

MSS sends an ARP for the IP address offered by the DHCP server to verify that the address is not already in use.

„If the address is not in use, MSS configures the VLAN that has the DHCP client enabled with the IP address received from the DHCP server. MSS then configures the other values as follows:

„Default router—MSS adds a default route for the gateway, with a metric of 10.

„DNS domain name and DNS server IP address—If the default domain name and DNS server IP address are already configured on the switch, and DNS is enabled, the configured values are used. Otherwise, the values received from the DHCP server are used.

„If the address offered by the DHCP server is already in use, MSS sends a DHCP Decline message to the server and generates a log message.

„If the address is in a subnet that is already configured on another VLAN on the switch, MSS sends a DHCP Decline message to the server and generates a log message.

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3Com WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX1200 3CRWX120695A manual Configuring and Managing IP Interfaces
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WX1200 3CRWX120695A, WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX2200 3CRWX220095A specifications

The 3Com WX2200 (3CRWX220095A), WX4400 (3CRWX440095A), WX1200 (3CRWX120695A), and WXR100 (3CRWXR10095A) are part of a robust suite of wireless networking solutions offered by 3Com, designed to meet the needs of modern enterprise environments. These devices provide reliable connectivity, flexibility, and scalability, making them ideal for businesses of all sizes.

The 3Com WX2200 is a high-performance wireless switch that supports up to 64 access points, making it suitable for medium to large deployments. It boasts advanced features such as dynamic RF management, which optimizes channel selection and power levels based on real-time network conditions. This ensures maximum coverage and minimizes interference, leading to improved user experiences. Additionally, it supports dual-band operation and can seamlessly integrate with various wireless access points, providing enhanced throughput and robust performance.

The WX4400 is designed for high-density environments and offers extensive scalability. It supports up to 128 access points and is equipped with advanced security features, including WPA2 enterprise encryption and role-based access control. This switch also features intelligent load balancing, allowing it to dynamically distribute user traffic across available access points, thus enhancing overall network efficiency.

The WX1200, positioned as an entry-level solution, is well-suited for small to medium-sized businesses. It offers a user-friendly management interface, allowing IT staff to quickly configure and monitor the network. This device supports a variety of deployment scenarios and can be easily integrated into existing infrastructure. It also comes equipped with essential security features to protect the network from unauthorized access.

The WXR100 complements the series by providing simplified management for access points, ensuring that businesses can easily deploy and maintain their wireless networks. It supports various management protocols and integrates with a variety of third-party systems, enhancing inter-operability. With Power over Ethernet (PoE) support, the WXR100 can deliver power to connected access points, reducing the complexity and costs associated with additional power infrastructure.

Together, these solutions embody 3Com's commitment to delivering high-quality networking products that enhance connectivity and performance. With features such as scalability, advanced security, dynamic load balancing, and centralized management, the WX2200, WX4400, WX1200, and WXR100 form a comprehensive wireless networking ecosystem tailored for today’s enterprise challenges.
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