Configuration Guide Configuring ARP
type: Indicates the ARP encapsulation type. For an Ethernet interface, the keyword is arpa.
Global configuration mode
The RGOS queries a 48-bit MAC address based on a 32-bit IP address in the ARP cache table.
Since most hosts support dynamic ARP resolution, usually the static ARP mapping are not configured. Use
the clear arp-cache command to delete the dynamic ARP entries.
Configuration
Example
For the network topology, see Figure 2-1.
Configure a static ARP entry on B to statically bind the IP address of A with the MAC address.
Ruijie(config)#arp 192.168.23.1 00D0.F822.334B arpa
Run the show arp static command to display the static ARP entry.
Ruijie(config)#show arp static
Protocol Address Age(min) Hardware Type Interface
Internet 192.168.23.1 <static> 00D0.F822.334B arpa
1 static arp entries exist.
Common Errors
The MAC address in static ARP is incorrect.
2.4.2 Configuring ARP Attributes
Configuration Effect
Users can specify the ARP timeout, ARP request retransmission interval and times, maximum number of unresolved ARP
entries, maximum number of ARP entries on an interface, and maximum number of ARP entries on a board.
Configuration Steps
Configuring the ARP Timeout
Optional.
In a LAN, if a user goes online/offline frequently, it is recommended to set the ARP timeout small to delete invalid
ARP entries as soon as possible.
Configure the ARP timeout in interface configuration mode.
Configuring the ARP Request Retransmission Interval and Times
Optional.
If the network resources are insufficient, it is recommended to set the ARP request retransmission interval great and
the retransmission times small to reduce the consumption of network bandwidths.
Configure the ARP request retransmission interval and times in global configuration mode.
Configuring the Maximum Number of Unresolved ARP Entries
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