Configure Iparp Add Proxy - Extreme Networks ExtremeWare XOS Command Reference Manual

configure iparp add proxy

configure iparp add proxy [<ipNetmask> | <ip_addr> {<mask>}] {vr <vr_name>}
{<mac>} {always}
Description
Configures the switch to respond to ARP Requests on behalf of devices that are incapable of doing so.
Up to 64 proxy ARP entries can be configured.
Syntax Description
ipNetmask
ip_addr
mask
mac_address
always
vr_name
Default
If you do not specify a virtual router, the current virtual router context is used.
Usage Guidelines
When is not specified, an address with the mask 255.255.255.255 is assumed. When
mask
is not specified, the MAC address of the switch is used in the ARP Response. When
the switch answers ARP Requests without filtering requests that belong to the same subnet of the
receiving router interface.
After IP ARP is configured, the system responds to ARP Requests on behalf of the device as long as the
following conditions are satisfied:
• The valid IP ARP Request is received on a router interface.
• The target IP address matches the IP address configured in the proxy ARP table.
• The proxy ARP table entry indicates that the system should always answer this ARP Request,
regardless of the ingress VLAN (the
After all the proxy ARP conditions have been met, the switch formulates an ARP Response using the
configured MAC address in the packet.
Example
The following command configures the switch to answer ARP Requests for all devices with the address
range of 100.101.45.1 to 100.101.45.255:
configure iparp add proxy 100.101.45.0/24
History
This command was available in ExtremeWare XOS 10.1.
ExtremeWare XOS 11.0 Command Reference Guide
Specifies an IP address/mask length.
Specifies an IP address.
Specifies a subnet mask.
Specifies a MAC address.
Specifies all ARP Requests.
Specifies a VR name.
parameter must be applied).
always
configure iparp add proxy
mac_address
is specified,
always
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