Displaying Arp Inspection Status And Ports; Displaying The Arp Table - Dell PowerConnect B-RX Configuration Manual

Displaying ARP inspection status and ports

To display the ARP inspection status for a VLAN and the trusted or untrusted ports in the VLAN,
enter the following command.
FastIron SuperX Switch#show ip arp inspection vlan 2
IP ARP inspection VLAN 2: Disabled
Trusted Ports :
Untrusted Ports : ethe 2/1 to 2/3 ethe 4/1 to 4/24 ethe 6/1 to 6/4 ethe 8/1 to
8/4
Syntax: show ip arp inspection [vlan <vlan_id>]
The <vlan_id> variable specifies the ID of a configured VLAN.

Displaying the ARP table

To display the ARP table, enter the following command.
BigIron RX#show arp
Total number of ARP entries: 10
1
2
3
4
5
6
7
8
9
10
The command displays all ARP entries in the system.
Syntax: show arp
TABLE 158
This field...
IP Address
MAC Address
Age
Port
BigIron RX Series Configuration Guide
53-1001810-01
ethe 1/4
IP Address MAC Address
20.20.20.39 0000.4623.ed91
20.20.20.40 0000.4623.ed8f
20.20.20.41 0000.4623.ed8d
20.20.20.42 0000.4623.ed8b
20.20.20.43 0000.2698.7027
20.20.20.44 0000.4623.ed89
20.20.20.45 0000.4623.ed87
10.43.11.1 0004.80a0.4000
10.43.11.45 0060.e040.a0c4
60.60.60.209 00d0.09a0.bd84
show arp command
Type
Dhcp
Dhcp
Dhcp
Inspect
Inspect
Inspect
Inspect
Dynamic
Dynamic
Inspect
Displays....
The IP address of the device.
The MAC address of the device.
The ARP Age, which can be one of the following:
•
The number of minutes the entry has remained unused. If this
value reaches the ARP aging period of 10 minutes, the entry is
removed from the table.
•
The Inspect Pending entries are never removed from the ARP Table
and are displayed in seconds not minutes.
•
The Inspect Valid entries are displayed in minutes and after 10
minutes of aging may be changed from Valid to Pending.
•
The DHCP age is in the form of x/y where x represents the ARP age
in minutes and y represents the lease time remaining of the client.
NOTE: Static entries do not age out.
This field shows the port on which the entry was learned. .
Dynamic ARP inspection
Age Port Status
3/3386 5/20 Valid
3/3386 5/20 Valid
6/3321 5/20 Valid
4 5/20 Valid
4 5/20 Valid
63 5/20 Pending
182 5/20 Pending
0 mgmt1 Valid
1 mgmt1 Valid
14 0/64 Pending
35
993