Alcatel-Lucent 7210 SAS M Configuration Manual page 52

Configuration Commands
address
Syntax address {ip-address/mask | ip-address netmask} [broadcast {all-ones | host-ones}]
no address
Context config>router>interface
Description This command assigns an IP address, IP subnet, and broadcast address format to an IP system IP
interface. Only one IP address can be associated with an IP interface.
An IP address must be assigned to each IP interface. An IP address and a mask combine to create a
local IP prefix. The defined IP prefix must be unique within the context of the routing instance. It
cannot overlap with other existing IP prefixes defined as local subnets on other IP interfaces in the
same routing context within the router.
The IP address for the interface can be entered in either CIDR (Classless Inter-Domain Routing) or
traditional dotted decimal notation. Show commands display CIDR notation and are stored in
configuration files.
By default, no IP address or subnet association exists on an IP interface until it is explicitly created.
The no form of the command removes the IP address assignment from the IP interface. The no form
of this command can only be performed when the IP interface is administratively shut down. Shutting
down the IP interface will operationally stop any protocol interfaces or MPLS LSPs that explicitly
reference that IP address. When a new IP address is defined, the IP interface can be administratively
enabled (no shutdown), which reinitializes the protocol interfaces and MPLS LSPs associated with
that IP interface.
If a new address is entered while another address is still active, the new address will be rejected.
Default No IP address is assigned to the IP interface.
Parameters
ip-address — The IP address of the IP interface. The ip-addr portion of the address command
/ — The forward slash is a parameter delimiter that separates the ip-addr portion of the IP address
mask-length — The subnet mask length when the IP prefix is specified in CIDR notation. When the
mask — The subnet mask in dotted decimal notation. When the IP prefix is not specified in CIDR
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specifies the IP host address that will be used by the IP interface within the subnet. This address
must be unique within the subnet and specified in dotted decimal notation.
Values
1.0.0.0 — 223.255.255.255
from the mask that defines the scope of the local subnet. No spaces are allowed between the ip-
addr, the "/" and the mask-length parameter. If a forward slash does not ediately follow the ip-
addr, a dotted decimal mask must follow the prefix.
IP prefix is specified in CIDR notation, a forward slash (/) separates the ip-addr from the mask-
length parameter. The mask length parameter indicates the number of bits used for the network
portion of the IP address; the remainder of the IP address is used to determine the host portion of
the IP address. Allowed values are integers in the range 1— 32. Note that a mask length of 32 is
reserved for system IP addresses.
Values 1 — 32
notation, a space separates the ip-addr from a traditional dotted decimal mask. The mask
parameter indicates the complete mask that will be used in a logical 'AND' function to derive the
7210 SAS M, X Router Configuration Guide