cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1713
Views
0
Helpful
0
Comments
TCC_2
Level 10
Level 10

Core issue

Normally, proxy Address Resolution Protocol (ARP) allows the VPN concentrator to respond to an ARP request for any network for which the concentrator has a route. ARP requests are normally broadcast by a device that wants to send a packet to its local LAN. The request asks all other devices on the network for the destination IP address and the physical address of its port. 

Some old devices were designed for networking only on their local LAN. These devices send ARP packets for all traffic they want to send, including packets destined for other networks. If proxy ARP is enabled, the VPN concentrator can intercept the ARP request and answer with its own physical address. The VPN concentrator can then receive the packet and forward the packet to its real destination.

Resolution

On Cisco VPN 3000 series concentrators, there is no option to disable proxy ARP in the interface  configuration. Therefore, it cannot be removed from the VPN concentrator configuration.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: