TOPEX Bytton (HSPA+ / LTE)
ByttonLTE(full)_genericUsermanual_sw306FAS_revN.1.docx
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The routing table will also show the routes for the local ETH ports whose IP addresses have been
individually assigned:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
193.57.235.84 192.168.1.8 255.255.255.255 UGH 0 0 0 wan
172.168.1.12 0.0.0.0 255.255.255.252 U 0 0 0 lan2
10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 br0
172.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 lan1
192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wan
0.0.0.0 192.168.1.8 0.0.0.0 UG 0 0 0 wan
ARP TABLE
What is it?
Generally, the Address Resolution Protocol (ARP) is a computer networking protocol for determining a
network host's link layer or hardware address when only its Internet Layer (IP) or Network Layer address
is known. This function is critical in local area networking as well as for routing internetworking traffic
across gateways (routers) based on IP addresses when the next-hop router must be determined. ARP
was defined as early as 1982 by RFC 826.
Each computer from a network maintains its own table of the mapping from Layer 3 addresses IP
addresses such as 10.0.0.12 ) to Layer 2 addresses (physical Ethernet addresses or MACs such as
31:fc:01:90:e5:c7 ). In a modern computer this is maintained almost entirely by ARP packets on the local
network and it thus often called the ARP table (cache)' as opposed to “table for Layer 2 addresses”'.
or
Currently, due to the overwhelming prevalence of IPv4 and Ethernet in general networking, ARP is most
frequently used to translate IPv4 addresses (OSI Layer 3) into Ethernet MAC addresses (OSI Layer 2).
In the next generation Internet Protocol, IPv6, ARP's functionality is provided by the Neighbor Discovery
Protocol (NDP).
