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Description This articles describes troubleshooting tips for the protocol ARP. Before any packet can be sent in Ethernet technologies, the network device should populate his own ARP table.
Scope
Solution Windows ARP commands:
- Display ARP table:
C:\>arp –a
Interface: 192.168.157.80 --- 0x8
Internet address Physical address Type
192.168.157.1 00-ff-d9-ba-82-16 dynamic
192.168.157.2 9c-93-4e-5e-00-38 dynamic
192.168.157.11 08-5b-0e-5e-92-9e dynamic
192.168.157.18 08-5b-0e-08-85-a9 dynamic
- Delete an ARP Table entry:
C:\> arp -d 192.168.157.2
FortiOS ARP Commands:
- Display ARP table:
# get system arp
- If VDOMs are configured:
# config vdom # edit <vdom_name> # get system arp
- Clear all ARP Table:
# execute clear system arp table
- Remove a single ARP entry:
# diag ip arp delete <interface_name> <IP Address>
- Remove all entries associated with a particular interface:
# diag ip arp flush <interface_name>
SNIFFER ARP PACKETS:
To ensure that ARP Packets are being sent and/or received:
