C
HAPTER
8
| Services
ARP Binding Configuration
– 114 –
ARP B
INDING
C
ONFIGURATION
The router uses its tables to make routing decisions, and uses Address
Resolution Protocol (ARP) to forward traffic from one hop to the next. ARP
is used to map an IP address to a physical layer MAC address. When an IP
frame is received by the router, it first looks up the MAC address
corresponding to the destination IP address in the ARP cache. If the
address is found, the router writes the MAC address into the appropriate
field in the frame header, and forwards the frame on to the next hop. IP
traffic passes along the path to its final destination in this way, with each
routing device mapping the destination IP address to the MAC address of
the next hop toward the recipient, until the packet is delivered to its final
destination.
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 MAC address. If this occurs, you can use ARP Binding to
manually map an IP address to the corresponding MAC address in the ARP
cache.
Figure 65: ARP Binding Configuration
The following items are displayed on this pages:
◆
IP Address
– IP address statically mapped to a physical MAC address.
(Valid IP addresses consist of four numbers, 0 to 255, separated by
periods, and must match a known network interface)
◆
MAC Address
– MAC address statically mapped to the corresponding
IP address. (Valid MAC addresses are hexadecimal numbers in the
format: xxxxxxxxxxxx)
Summary of Contents for SMC7904WBRAS-N2 V2 - QUICK
Page 1: ...USER GUIDE ADSL2 BARRICADE N 4 Port ADSL ADSL2 Wireless Router SMC7904WBRAS N2 v2...
Page 20: ...CONTENTS 20 GLOSSARY 151 INDEX 154...
Page 70: ...CHAPTER 5 WLAN Configuration WDS 70 4 DIsable the DHCP server Figure 33 Disabling DHCP...
Page 71: ...CHAPTER 5 WLAN Configuration WDS 71...
Page 129: ...CHAPTER 10 Diagnostics Traceroute 129 Figure 79 Traceroute Result...
