User Manual

Table Of Contents
Routing
251
M6100 Web Management User Guide
1. From the menu, select the VLAN ID that you want to configure for VLAN Routing. This
field displays the IDs of all the VLANs configured on this switch.
2. Use IP Address to enter the IP
Address to be configured for the VLAN Routing Interface.
3. Use Subnet Mask to enter the Subnet Mask to be configured for the VLAN Routing
Interface.
4. Click Add to add the VLAN Routing Interface specified in the VLAN ID field to the switch
configuration.
5. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
6. Click Delete to remove the VLAN Routing Interface specified in the VLAN ID field from the
switch configuration.
Field Description
Port The interface assigned to the VLAN for routing.
MAC Address The MAC Address assigned to the VLAN Routing
Interface
ARP
The ARP protocol associates a layer 2 MAC address with a layer 3 IPv4 address. M6100
Chassis switch software features both dynamic and manual ARP configuration. With manual
ARP configuration, you can statically add entries into the ARP table.
ARP is a necessary part of the internet protocol (IP) and is used to translate an IP address to
a media (MAC) address, defined by a local area network (LAN) such as Ethernet.
A station
needing to send an IP packet must learn the MAC address of the IP destination, or of the
next hop router, if the destination is not on the same subnet. This is achieved by broadcasting
an ARP request packet, to which the intended recipient responds by unicasting an ARP reply
containing its MAC address. Once learned, the MAC address is used in the destination
address field of the layer 2 header prepended to the IP packet.
The ARP cache is a table maintained locally in each station on a network. ARP cache entries
are learned by examining the source information in the
ARP packet payload fields,
regardless of whether it is an ARP request or response. Thus, when an ARP request is
broadcast to all stations on a LAN segment or virtual LAN (VLAN), every recipient has the
opportunity to store the sender’s IP and MAC address in their respective ARP cache. The
ARP response, being unicast, is normally seen only by the requestor, who stores the sender