Interface - Enterasys SecureStack C2 C2G170-24 Configuration Manual

Parameters
vlan vlan‐id
loopback loop‐id
Defaults
None.
Mode
Router global configuration mode: C2(su)‐>router(Config)#
Usage
This command enables interface configuration mode from global configuration mode, and, if the
interface has not previously been created, this command creates a new routing interface. For
details on configuration modes supported by the SecureStack C2 device and their uses, refer to
Table 18‐2 in "Enabling Router Configuration Modes" on page 18‐2.
VLANs must be created from the switch CLI before they can be configured for IP routing. For
details on creating VLANs and configuring them for IP, refer to "Enabling Router Configuration
Modes" on page 18‐2.
Each VLAN interface must be configured for routing separately using the interface command. To
end configuration on one interface before configuring another, type exit at the command prompt.
Enabling interface configuration mode is required for completing interface‐specific configuration
tasks. For an example of how these commands are used, refer to "Pre‐Routing Configuration
Tasks" on page 18‐1.
A loopback interface is always expected to be up. This interface can provide the source address for
sent packets and can receive both local and remote packets. The loopback interface is typically
used by routing protocols. If RADIUS is configured with no host IP address on the device, it will
use the loopback interface 0 IP address (if it has been configured) as its source for the NAS‐IP
attribute.
Each SecureStack C2 system (stack) can support up to 24 routing interfaces. Each interface can be
configured for the RIP and/or OSPF routing protocols.
Examples
This example shows how to enter configuration mode for VLAN 1:
C2(su)->router#configure
C2(su)->router(Config)#interface vlan 1
C2(su)->router(Config-if(Vlan 1))#
This example shows how to enter configuration mode for loopback 1:
C2(su)->router#configure
C2(su)->router(Config)#interface loopback 1
C2(su)->router(Config-if(Lpbk 1))#
Specifies the number of the VLAN interface to be configured for routing.
This interface must be configured for IP routing as described in "Pre‐
Routing Configuration Tasks" on page 18‐1.
Specifies the number of the loopback interface to be configured for routing.
The value of loop‐id can range from 0 to 7.
SecureStack C2 Configuration Guide 19-3

interface