HP Cisco Catalyst Blade Switch 3020 Cisco Catalyst Blade Switch 3020 for HP So - Page 65
Default Switch Information, Understanding DHCP-Based Autoconfiguration, Feature, Default Setting
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Chapter 3 Assigning the Switch IP Address and Default Gateway Assigning Switch Information Default Switch Information Table 3-1 shows the default switch information. Table 3-1 Default Switch Information Feature IP address and subnet mask Default gateway Enable secret password Hostname Telnet password Default Setting No IP address or subnet mask are defined. No default gateway is defined. No password is defined. The factory-assigned default hostname is Switch. No password is defined. Understanding DHCP-Based Autoconfiguration DHCP provides configuration information to Internet hosts and internetworking devices. This protocol consists of two components: one for delivering configuration parameters from a DHCP server to a device and a mechanism for allocating network addresses to devices. DHCP is built on a client-server model, in which designated DHCP servers allocate network addresses and deliver configuration parameters to dynamically configured devices. The switch can act as both a DHCP client and a DHCP server. During DHCP-based autoconfiguration, your switch (DHCP client) is automatically configured at startup with IP address information and a configuration file. With DHCP-based autoconfiguration, no DHCP client-side configuration is needed on your switch. However, you need to configure the DHCP server for various lease options associated with IP addresses. If you are using DHCP to relay the configuration file location on the network, you might also need to configure a Trivial File Transfer Protocol (TFTP) server and a Domain Name System (DNS) server. The DHCP server for your switch can be on the same LAN or on a different LAN than the switch. If the DHCP server is running on a different LAN, you should configure a DHCP relay device between your switch and the DHCP server. A relay device forwards broadcast traffic between two directly connected LANs. A router does not forward broadcast packets, but it forwards packets based on the destination IP address in the received packet. DHCP-based autoconfiguration replaces the BOOTP client functionality on your switch. When you install the switch, the HP Onboard Administrator might assign an IP address to the switch fa0 Ethernet interface. This occurs if the Onboard Administrator is connected to a network in which a DHCP server is also connected or if the Onboard Administrator has been configured as a DHCP server. If either of these conditions is true, the fa0 interface obtains an IP address, and you can manage the switch through the fa0 interface. See the HP BladeSystem documentation at http://www.hp.com/go/bladesystem/documentation for more information about the Onboard Administrator. OL-8915-01 Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide 3-3
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