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Internet Protocol (IP) is primarily a network-layer (Layer 3) protocol that contains addressing and control
information that enables packets to be forwarded. Along with Transmission Control Protocol (TCP), IP
represents the heart of the Internet protocols. IP has two primary responsibilities, providing
connectionless, best-effort delivery of datagrams through an internetwork; and providing fragmentation
and reassembly of datagrams to support data links with different Maximum Transmission Unit (MTU)
sizes.
Note. IP routing (Layer 3) can be accomplished using static routes or by using one of the IP routing
protocols, Routing Information Protocol (RIP) and Open Shortest Path First (OSPF). For more
information on these protocols see
in the OmniSwitch AOS Release 7 Advanced Routing Configuration Guide.
There are two versions of Internet Protocol supported, IPv4 and IPv6. For more information about using
IPv6, see
Chapter 13, "Configuring IPv6."
In This Chapter
This chapter describes IP and how to configure it through the Command Line Interface (CLI). It includes
instructions for enabling IP forwarding, configuring IP route maps, as well as basic IP configuration
commands (e.g.,
ip
default-ttl). CLI commands are used in the configuration examples; for more details
about the syntax of commands, see the OmniSwitch CLI Reference Guide. This chapter provides an
overview of IP and includes information about the following procedures:
•
IP Forwarding
– Configuring an IP Router Interface (see
– Creating a Static Route or Recursive Static Route (see
– Creating a Default Route (see
– Configuring Address Resolution Protocol (ARP) (see
•
IP Configuration
– Configuring the Router Primary Address (see
– Configuring the Router ID (see
– Configuring the Time-to-Live (TTL) Value (see
– Configuring Route Map Redistribution (see
– IP-Directed Broadcasts (see
– Protecting the Switch from Denial of Service (DoS) attacks (see
OmniSwitch AOS Release 7 Network Configuration Guide
11 Configuring IP
Chapter 15, "Configuring RIP,"
page
11-7)
page
11-12)
page
11-16)
page
11-16)
page
page
11-17)
page
11-23)
March 2011
in this manual; or "Configuring OSPF"
page
11-11)
page
11-12)
11-17)
page
11-23)
page 111
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