HP A3100-8 v2 SI User Manual

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To do… Use the command… Remarks
Restore the default settings for the
interface
default Optional
NOTE:
You can configure settings such as IP addresses and IP routes on loopback interfaces. For more
information, see the
Layer 3—IP Services Configuration Guide and Layer 3—IP Routing Configuration
Guide
.
Null interface
Introduction to null interface
A null interface is a completely software-based logical interface, and is always up. However, you cannot
use it to forward data packets or configure an IP address or link-layer protocol on it. With a null interface
specified as the next hop of a static route to a specific network segment, any packets routed to the
network segment are dropped. The null interface provides a simpler way to filter packets than ACL. You
can filter uninteresting traffic by transmitting it to a null interface instead of applying an ACL.
For example, by executing the ip route-static 92.101.0.0 255.255.0.0 null 0 command (which configures
a static route that leads to null interface 0), you can have all the packets destined to the network segment
92.101.0.0/16 discarded.
Only one null interface, Null 0, is supported on your switch. You cannot remove or create a null interface.
Configuring null 0 interface
Follow these steps to enter null interface view:
To do… Use the command… Remarks
Enter system view system-view —
Enter null interface view interface null 0
Required
The Null 0 interface is the default null interface
on your switch. It cannot be manually created or
removed.
Set a description for the
null interface
description text
Optional
By default, the description of an interface is the
interface name followed by the “Interface”
string.
Restore the default settings
of the interface
default Optional

HP A3100-8 v2 SI Specifications

General

Brand	HP
Model	A3100-8 v2 SI
Category	Switch
Language	English