User manual

C HAPTER 16 | IP Configuration
Address Resolution Protocol
– 268 –
ES-2000 Series
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Destination unreachable - The gateway for this destination indicates
that the destination is unreachable.
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Network or host unreachable - The gateway found no corresponding
entry in the route table.
WEB INTERFACE
To ping another device on the network:
1. Click IP, General, Ping.
2. Specify the target device and ping parameters.
3. Click Apply.
Figure 167: Pinging a Network Device
ADDRESS RESOLUTION PROTOCOL
Address Resolution Protocol (ARP) is used to map an IP address to a
physical layer (i.e., MAC) address. When a device sends or receives a
packet with an IP header, it must first resolve the destination IP address
into a MAC address. When an IP frame is received by this switch, it first
looks up the MAC address corresponding to the destination IP address in
the ARP cache. If the address is found, the switch writes the MAC address
into the appropriate field in the frame header, and forwards the frame on to
the destination.