Ip Proxy-Arp - Enterasys Matrix DFE-Gold Series Configuration Manual

Reviewing and Configuring the ARP Table
Mode
Router command, Interface configuration: Matrix>Router(config‐if(Vlan 1))#
Usage
This command will be in effect if the ip gratuitous‐arp ignore command ("ip gratuitous‐arp" on
page 16‐15) is used. There will be no learning from gratuitous ARP frames, even with the ip
gratuitous‐arp‐learning command enabled.
The "no" form of this command disables gratuitous ARP learning.
Example
This example shows how to enable gratuitous ARP learning for both requests and replies on
VLAN 1:
Matrix>Router(config)#interface vlan 1
Matrix>Router(config-if(Vlan 1))#ip gratuitous-arp-learning both

ip proxy-arp

Use this command to enable proxy ARP on an interface. This variation of the ARP protocol allows
the routing module to send an ARP response on behalf of an end node to the requesting host.
Syntax
ip proxy-arp [default-route] [local]
no ip proxy-arp
Parameters
default‐route
local
Defaults
None.
Mode
Router command, Interface configuration: Matrix>Router(config‐if(Vlan 1))#
Usage
Proxy ARP can lessen bandwidth use on slow‐speed WAN links. It is enabled by default.
The "no" form of this command disables proxy ARP
16-16 IP Configuration
(Optional) Sets the router to respond to ARP requests for hosts that are
only reachable via the default route. Typically, proxy arp is only used to
reply to requests for host that are reachable via a non‐default route.
(Optional) Allows the router to respond to ARP requests that are
received on the interface to which this command is applied if the source
IP address of the request is reachable on this interface.
ip proxy-arp