D-Link xStack DGS-3610 Series Configuration Manual page 219

DGS-3610 Series Configuration Guide
Command
DGS-3610(config-if)# no ip address
ip-address
mask secondary
19.1.2.2 Configuration of Address Resolution
Protocol (ARP)
For each IP network device in a LAN, it uses two addresses including local address and
network address. 1) Local address is contained in the header of data link frame. Disputably,
the correct term is "data link layer address". Since this local address is processed in the
MAC sub-layer of data link layer, it is normally called MAC address, which represents IP
network device in the LAN. 2) Network address represents the IP network devices in the
Internet, and denotes the network which this device belongs to at the same time.
To implement the inter-communication with two IP devices on the LAN, it's needed to know
the 48-bits MAC address of the destination host. The procedure of acquiring the MAC
address according to the IP address is called Address Resolution Protocol (ARP). There are
two ways of address resolution: 1) Address Resolution Protocol (ARP); 2) Proxy Address
Resolution Protocol (Proxy ARP). About the description of ARP, Proxy ARP and RARP, refer
to RFC 826, RFC 1027, RFC 903.
ARP is used to bind together the IP and MAC Address. By an input of an IP address, ARP is
able to locate the associated MAC address. Once the MAC address is known, the
corresponding relationship between the IP address and the MAC address will be saved in
the ARP buffer in the equipment. Based on the MAC address, IP devices can encapsulate
the frame of data link layer and send the frame to the LAN. By default, IP and ARP
encapsulations are the type of Ethernet II. However the frames can also be encapsulated
into other types of Ethernet frame (for example, SNAP).
The principle of RARP is similar to ARP. With the input of an MAC address, RARP obtains
the the associated IP address. RARP is configured on non-disks workstation in general.
Usually, you do not need to configure address resolution protocols on the router except the
case in particular . Our product can manage the address resolution procedure by performing
the following tasks.
Configuring ARP Statically

Setting ARP Encapsulations

Setting ARP Timeout

19.1.2.2.1 Configuring ARP Statically
ARP provides the function of dynamic mapping from IP address to MAC address. It is not
necessary to configure ARP statically in most cases. By Configuring ARP Statically, our
product can respond to the ARP request which is not belonged to its own IP address.
Chapter 19 IP Address and Service Configuration
Function
Cancel the configuration of the secondary IP
addresses on an interface.
19-5