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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 <Italic>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.
•
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 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 bits (ones).
By default, the CLI displays network masks in classical IP address format (example: 255.255.255.0). You can change the display to
prefix format.
Assigning an IP address to an Ethernet port
To assign an IP address to port 0/1/1, enter the following commands:
FastIron(config)#interface ethernet 0/1/1
FastIron(config-if-0/1/1)#ip address 192.45.6.1 255.255.255.0
NOTE
You also can enter the IP address and mask in CIDR format, as follows:
FastIron
(config-if-0/1/1)# ip address 192.45.6.1/24
Brocade FastIron GS and GS-STK Hardware Installation Guide
Part Number: 53-1002186-03
Connecting Network Devices and Checking Connectivity
Configuring IP addresses
63
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