S1720, S2700, S5700, and S6720 V200R011C10 Configuration Guide - IP Service
This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.
This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.
Checking ARP Entries
Context
To view information about the connected users, check ARP entries on a gateway device. This information includes IP addresses, MAC addresses, and interfaces.
In routine maintenance, you can run the following commands in any view to check ARP entry information on the device.
Procedure
- Run the following commands to check ARP entries.
Run the display arp [ all ] command to check all ARP entries.
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To check the ARP entry of an IP address (for example, 10.1.1.1), run the display arp all | include 10.1.1.1 command.
Run the display arp dynamic [ vlan vlan-id ] command to check dynamic ARP entries.
Run the display arp static command to check all static ARP entries.
Run the display arp network net-number [ net-mask | mask-length ] [ dynamic | static ] command to check ARP entries on a specified network segment.
Run the display arp interface interface-type interface-number command to check ARP entries on a specified interface.
Run the display arp vpn-instance vpn-instance-name [ dynamic | static ] command to check ARP entries in a specified VPN instance.
- Run the display arp statistics { all | interface interface-type interface-number } command to check ARP entry statistics.
- Run the display arp status ip-address [ vpn-instance vpn-instance-name ] slot slot-id command to check the ARP entry delivery status on the device.
