Address Resolution Protocol
19-11
19
Configuring Static ARP Addresses
For devices that do not respond to ARP requests or do not respond in a timely
manner, traffic will be dropped because the IP address cannot be mapped to a
physical address. If this occurs, you can manually map an IP address to the
corresponding physical address in the ARP cache.
Command Usage
• The ARP cache is used to map 32-bit IP addresses into 48-bit hardware (that is,
Media Access Control) addresses. This cache includes entries for hosts and other
routers on local network interfaces defined on this router.
• You can define up to 128 static entries in the ARP cache.
• A static entry may need to be used if there is no response to an ARP broadcast
message. For example, some applications may not respond to ARP requests or
the response arrives too late, causing network operations to time out.
• Static entries will not be aged out or deleted when power is reset. You can only
remove a static entry via the configuration interface.
Command Attributes
•
IP Address
– IP address statically mapped to a physical MAC address. (Valid IP
addresses consist of four numbers, 0 to 255, separated by periods.)
•
MAC Address
– MAC address statically mapped to the corresponding IP address.
(Valid MAC addresses are hexadecimal numbers in the format: xx-xx-xx-xx-xx-xx.)
•
Entry Count
– The number of static entries in the ARP cache.
Web -
Click IP, ARP, Static Addresses. Enter the IP address, the corresponding
MAC address, and click Apply.
Figure 19-4 ARP Static Addresses
Summary of Contents for 8926EM
Page 6: ...ii ...
Page 34: ...Getting Started ...
Page 44: ...Introduction 1 10 1 ...
Page 62: ...Initial Configuration 2 18 2 ...
Page 64: ...Switch Management ...
Page 76: ...Configuring the Switch 3 12 3 ...
Page 118: ...Basic Management Tasks 4 42 4 ...
Page 164: ...User Authentication 6 28 6 ...
Page 176: ...Access Control Lists 7 12 7 ...
Page 284: ...Quality of Service 14 8 14 ...
Page 294: ...Multicast Filtering 15 10 15 ...
Page 300: ...Domain Name Service 16 6 16 ...
Page 310: ...Dynamic Host Configuration Protocol 17 10 17 ...
Page 320: ...Configuring Router Redundancy 18 10 18 ...
Page 344: ...IP Routing 19 24 19 ...
Page 356: ...Unicast Routing 20 12 20 Web Click Routing Protocol RIP Statistics Figure 20 5 RIP Statistics ...
Page 386: ...Unicast Routing 20 42 20 ...
Page 388: ...Command Line Interface ...
Page 400: ...Overview of the Command Line Interface 21 12 21 ...
Page 466: ...SNMP Commands 24 16 24 ...
Page 520: ...Access Control List Commands 26 18 26 ...
Page 546: ...Rate Limit Commands 30 2 30 ...
Page 612: ...VLAN Commands 34 24 34 ...
Page 626: ...Class of Service Commands 35 14 35 ...
Page 670: ...DHCP Commands 39 16 39 ...
Page 716: ...IP Interface Commands 41 36 41 ...
Page 768: ...IP Routing Commands 42 52 42 ...
Page 770: ...Appendices ...
Page 791: ......