Brocade FastIron GS and GS-STK Hardware Installation Guide - Manual (Page 65)

Brocade FastIron GS and GS-STK Hardware Installation Guide 55
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Configuring IP addresses
5
DRAFT: BROCADE CONFIDENTIAL
NOTE
Recovery from a lost password requires direct access to the serial port and a system reset.
To recover from a lost password:
1. Start a CLI session over the serial interface to the Brocade device.
2. Reboot the device.
3. While the system is booting, before the initial system prompt appears, enter b to enter the boot
monitor mode.
4. Enter no password at the prompt. (You cannot abbreviate this command.)
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, Brocade routers require
an IP subnet address for the subnet in which you plan to place them in your network.
Brocade 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. Refer to the FastIron
Configuration Guide.
Devices running base layer 3 software
You can configure an IP address on the following types of Base Layer 3 Switch interfaces:
• Ethernet port
• Virtual routing interface (also called a Virtual Ethernet or “VE”)
• Loopback interface
By default, you can configure up to 24 IP addresses on each interface. On Compact Base Layer 3
Switches, you can increase this amount to up to 64 IP subnet addresses per port by increasing the
size of the subnet-per-interface table.
Once you configure a virtual routing interface on a VLAN, you cannot configure Layer 3 interface
parameters on individual ports in the VLAN. Instead, you must configure the parameters on the
virtual routing interface itself.
Brocade 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.