HP V1910 Switch Series User Manual

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Dynamic ARP entry
A dynamic entry is automatically created and maintained by ARP. It can get aged, be updated by a new
ARP packet, or be overwritten by a static ARP entry. When the aging timer expires or the interface goes
down, the corresponding dynamic ARP entry will be removed.
Static ARP entry
A static ARP entry is manually configured and maintained. It cannot get aged or be overwritten by a
dynamic ARP entry.
Using static ARP entries enhances communication security. After a static ARP entry is specified, only a
specific MAC address is associated with the specified IP address. Attack packets cannot modify the
IP-to-MAC mapping. Thus, communications between devices are protected.
Static ARP entries can be classified into long or short.
 A long static ARP entry can be directly used to forward packets. When configuring a long static
ARP entry, you must configure a VLAN and an outbound interface for the entry besides the IP
address and the MAC address.
 A short static ARP entry has only an IP address and a MAC address configured. It cannot be directly
used for forwarding data. If a short static ARP entry matches an IP packet to be forwarded, the
device sends an ARP request first. If the sender IP and MAC addresses in the received ARP reply are
the same as those in the short static ARP entry, the device adds the interface receiving the ARP reply
to the short static ARP entry. Then the entry can be used for forwarding IP packets.
NOTE:
Usually ARP dynamically resolves IP addresses to MAC addresses, without manual intervention.
Managing ARP entries
Displaying ARP entries
Select Network > ARP Management from the navigation tree to enter the default ARP Table page shown
in Figure 267. All ARP entries are displayed on the page.
Figure 267 ARP Table configuration page

HP V1910 Switch Series Specifications

General

Product Series	V1910
VLAN Support	Yes
QoS	Yes
Ports	8, 24, or 48 10/100/1000 ports
MAC Address Table Size	8K entries
Power Supply	Internal power supply
Jumbo Frame Support	Yes
Operating Humidity	10% to 90% (non-condensing)

Summary

Configuration through the web interface

Default login information

Provides the default username and password for accessing the web interface.

Configuration at the CLI

Getting started with the CLI

Introduces using the Command Line Interface for device management.

Device maintenance

Software upgrade

Describes the process of upgrading the system software.

Port management configuration

Configuring a port

Guides through setting port operation parameters.

User management

Configuring users

Describes adding and managing local user accounts and groups.

SNMP configuration

Enabling SNMP

Guides on enabling and configuring SNMP settings.

VLAN configuration

Creating VLANs

Details the process of creating new VLANs.

MAC address configuration

MSTP configuration

Link aggregation and LACP configuration

Configuring link aggregation and LACP

Guides on setting up link aggregation and LACP.

DHCP overview

DHCP snooping configuration

Functions of DHCP snooping

Lists recording IP-to-MAC and ensuring authorized servers.

Diagnostic tools

Ping

Explains the ping command for verifying reachability.

Trace route

Describes the trace route command for tracing IP packets.

ARP management

ARP attack defense configuration

ARP detection

Introduces ARP detection to prevent man-in-the-middle attacks.

802.1X configuration

Configuring 802.1X globally

Guides on enabling and configuring 802.1X authentication globally.

AAA configuration

Introduction to AAA

Introduces Authentication, Authorization, and Accounting.

RADIUS configuration

Introduction to RADIUS

Users

Configuring a local user

PKI configuration

ACL configuration

ACL overview

Creating an IPv4 ACL

QoS configuration

Introduction to QoS

PoE configuration

Configuring PoE ports