Show ip arp – Allied Telesis AT-S63 User Manual

Page 590

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Chapter 32: Internet Protocol Version 4 Packet Routing

590

Section VII: Internet Protocol Routing

SHOW IP ARP

Syntax

show ip arp

Parameters

None.

Description

This command displays the entries in the ARP cache. The ARP cache
contains mappings of IP addresses to physical addresses for hosts where
the switch has recently routed packets. For background information, refer
to “Address Resolution Protocol (ARP) Table” on page 555.

Figure 47 is an example of the information displayed by this command.

Figure 47. SHOW IP ARP Command

The columns in the display are:

ˆ

Interface - Interface from where the network device is accessed.

ˆ

IP Address - IP address of the node.

ˆ

MAC Address - MAC address of the node.

ˆ

Port - Port on the switch from where the node is accessed.

ˆ

Type - Type of entry. This is one of the following:
– Static: Static entry added with “ADD IP ARP” on page 568.
– Dynamic: Entry learned from ARP request/reply exchanges.
– Invalid: Possible nonexistent entry.
– Other: Entry automatically generated by the system.

To set the ARP timeout value, refer to “SET IP ARP TIMEOUT” on
page 582.

-----------------------------------------------------------------
Interface

IP Address

MAC Address

Port

Type

-----------------------------------------------------------------
vlan2-0

149.122.34.4

00:06:5B:B2:44:21

2

Dynamic

vlan2-0

149.122.34.12

00:A0:D2:18:EE:A1

3

Dynamic

vlan2-0

149.122.34.21

00:A0:C3:57:32:14

4

Dynamic

vlan8-1

149.122.35.1

00:A0:64:B1:76:A5

7

Dynamic

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