Filter
Top Products
358
Default: No static ARP entry is set by default.
Command mode: VLAN Interface Mode
Usage Guide: Static ARP entries can be configured in the switch.
Example: Configure static ARP for interface VLAN1.
Switch(Config-If-Vlan1)#arp 1.1.1.1 00-03-0f-f0-12-34 eth 1/2
14.3.2.2.2 ip proxy-arp
Command: ip proxy-arp
no ip proxy-arp
Function: Enable proxy ARP for VLAN interface; the “no ip proxy-arp” command
disables proxy ARP.
Default: Proxy ARP is disabled by default.
Command mode: VLAN Interface Mode
Usage Guide: When an ARP request is received on the layer3 interface, requesting an IP
address in the same IP segment of the interface but not the same physical
network, if the interface enabled proxy ARP, the interface would reply to the
ARP its own MAC address and forward the actual packets received.
Enabling this function allows machines physically separated but of the same
IP segment ignores the physical separation and communicates via proxy
ARP interface as if in the same physical network. Proxy ARP will check the
route table to determine whether the destination network is reachable before
responding to the ARP request; ARP request will only be responded to if the
destination is reachable. Note: ARP request matching default route will not
use proxy.
Example: Enable proxy ARP for VLAN 1.
Switch(Config-If-Vlan1)#ip proxy-arp
14.3.3 ARP Forwarding Troubleshooting Help
14.3.3.1 Monitor and Debug Commands
14.3.3.1.1 show arp
Command: show arp [<ip-addr>][<vlan-id>][<hw-addr>][type
{static|dynamic}][count] }
Function: Display the ARP table.
Parameter: <ip-addr> is a specified IP address; <vlan-id> stands for the entry for the