Introduction to Networking for NonStop NS-Series Servers (H06.03+, J06.03+)

Introduction to Networking for HP Integrity NonStop NS-Series Servers—529874-003
2-1
2 Networking Concepts
This section provides a brief overview of networking concepts including the following
topics:
•
Address Resolution
•
Name Resolution on page 2-2
•
Allocation of IP Addresses on page 2-3
•
Routers on page 2-3
•
Switches on page 2-4
•
Gateways on page 2-4
•
Network Interface Name on page 2-4
•
Firewalls on page 2-4
•
IPv6 on page 2-5
For more detailed information about Internet concepts and services, see the TCP/IP
Configuration and Management Manual.
Address Resolution
Address resolution refers to the mapping of IP addresses to lower level addresses and
is accomplished by the static binding of addresses or the dynamic binding of
addresses. Static binding of addresses is used for the NonStop TCP/IP product over
X.25. Dynamic binding of addresses is implemented with the Address Resolution
Protocol (ARP) for IPv4 (defined in IEEE RFC 826) and is used for NonStop TCP/IP
and NonStop TCP/IPv6 over Ethernet.
Address resolution with the dynamic binding of addresses for networks involves the
use of the Neighbor Discovery Protocol. Using the Neighbor Discovery Protocol and
stateless address auto configuration, an Integrity NonStop server configured as an
IPv6 host discovers other nodes on the link, determines their link-layer addresses,
finds routers, and maintains reachability information about the paths to active
neighbors. See the TCP/IPv6 Configuration and Management Manual for more
information about the Neighbor Discovery Protocol and stateless address auto
configuration in the IPv6 network. See also, IPv6 on page 2-5.