Connecting Network Devices and Checking Connectivity
September 2007 © 2007 Foundry Networks, Inc. 4 - 3
5. Enter boot system flash primary at the prompt. This command causes the device to bypass the system
password check.
6. After the console prompt reappears, assign a new password.
Configuring IP Addresses
You must configure at least one IP address using the serial connection to the CLI before you can manage the
system using the other management interfaces. In addition, Foundry routers require an IP subnet address for the
subnet in which you plan to place them in your network.
Foundry devices support both classical IP network masks (Class A, B, and C subnet masks, and so on) and
Classless Interdomain Routing (CIDR) network prefix masks.
• To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.
• To enter a prefix number for a network mask, enter a forward slash ( / ) and the number of bits in the mask
immediately after the IP address. For example, enter “209.157.22.99/24” for an IP address that has a network
mask with 24 significant (“mask”) bits.
By default, the CLI displays network masks in classical IP address format (example: 255.255.255.0). You can
change the display to the prefix format. See the Foundry FastIron Configuration Guide.
NOTE: If your network uses a BootStrap Protocol (BootP) server or a Dynamic Host Configuration Protocol
(DHCP) server, you can allow the Foundry device to obtain IP addresses for the hosts on the network.

Devices Running Layer 2 Software

To configure an IP Address on a device running Layer 2 software:
1. At the opening CLI prompt, enter enable.
FastIron> enable
2. Enter the following command at the Privileged EXEC level prompt (for example, FastIron Switch#), then press
Enter. This command erases the factory test configuration if still present:
FastIron# erase startup-config
CAUTION: Use the erase startup-config command only for new systems. If you enter this command on a
system you have already configured, the command erases the configuration. If you accidentally do erase the
configuration on a configured system, enter the write memory command to save the running configuration to
the startup-config file.
3. Access the configuration level of the CLI by entering the following command:
FastIron# configure terminal Privileged EXEC Level
FastIron(config)# Global CONFIG Level
4. Configure the IP address and mask for the switch.
FastIron(config)# ip address 192.22.3.44 255.255.255.0
5. Set a default gateway address for the switch.
FastIron(config)# ip default-gateway 192.22.3.1
NOTE: You do not need to assign a default gateway address for single subnet networks.
Syntax: enable [<password>]
Syntax: configure terminal