Manual

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Next hop use the partner IP address
Switch(config)#ip route 10.1.1.0 255.255.255.0 10.1.2.1
Next hop use the partner IP address
Switch(config)#ip route 10.1.4.0 255.255.255.0 10.1.3.1
Configuration of layer3 SwitchB
Switch#config
Switch(config)#ip route 0.0.0.0 0.0.0.0 10.1.3.2
In this way, ping connectivity can be established between PC-A and PC-C, and PC-B and PC-
C.
24.4 ARP
24.4.1 Introduction to ARP
ARP (Address Resolution Protocol) is mainly used to resolve IP address to Ethernet MAC
address. Switch supports static ARP configuration.
24.4.2 ARP Configuration Task List
ARP Configuration Task List:
Configure static ARP
Command
Explanation
Interface Configuration Mode
arp <ip_address> <mac_address>
no arp <ip_address>
Configures a static ARP entry; the no
command deletes a static ARP entry.
24.4.3 ARP Troubleshooting
If ping from the switch to directly connected network devices fails, the following can be used to
check the possible cause and create a solution.
 Check whether the corresponding ARP has been learned by the switch.
 If ARP has not been learned, then enabled ARP debugging information and view the
sending/receiving condition of ARP packets.
 Defective cable is a common cause of ARP problems and may disable ARP learning.