IP Addressing

In this section:

  1. IP Addressing Overview
    IPv4 is the Internet protocol that is most commonly used currently throughout the world. IPv4 uses a 32-bit addressing system designed for use in packet-switched networks and is represented in a 4-byte dotted decimal format: x.x.x.x.
  2. Basic IP Configuration
    IP is enabled by default. Basic configuration consists of adding IP addresses for Layer 3 devices, configuring DNS, enabling a route exchange protocol, such as the Routing Information Protocol (RIP), and enabling and configuring routing protocols.
  3. Assigning an IP Address to a Loopback Interface
    Loopback interfaces can be assigned an IPv4 address using this task.
  4. Assigning an IPv4 Address to an Ethernet Port
    Ethernet ports can be assigned an IPv4 address using this procedure.
  5. Assigning an IP Address to a Virtual Ethernet Interface
    Virtual Ethernet (VE) interfaces can be assigned an IPv4 address.
  6. Domain Name System
  7. ICMP
    Internet Control Message Protocol (ICMP) is used to send error and operational messages and is enabled by default.
  8. ICMP Router Discovery Protocol Configuration
    The ICMP Router Discovery Protocol (IRDP) is used by RUCKUS Layer 3 devices to advertise the IP addresses of its router interfaces to directly attached hosts.
  9. Configuring IP Follow on a Virtual Routing Interface
    Configuring IP Follow can help conserve IP address space.
  10. IP Address Replacement
  11. Changing Packet Encapsulation Type and MTU
    The MTU and the encapsulation type of an IP packet can be changed from the default values.
  12. IPv4 Point-to-Point GRE Tunnels
  13. Bandwidth for IP Interfaces
    The bandwidth for an IP interface can be specified so that higher level protocols, such as OSPFv2 and OSPFv3, can use this setting to influence the routing cost for routes learned on these interfaces.
  14. User-configurable MAC address per IP interface
    Manual configuration of one IP MAC address for each Layer 3 physical or virtual Ethernet (VE) interface on a device is permitted. The configured MAC address is used as the source MAC address by routing protocols or hardware communication related to the IPv4 or IPv6 addresses on the interface, for example, in ARP or Neighbor Discovery (ND) packets to the interface. The IPv4 and IPv6 addresses use the same IP MAC address for any software and hardware communication.
  15. Modifying and Displaying Layer 3 System Parameter Limits
    Before manually changing IP system parameter values, you must view the existing values.
  16. Changing the Router ID
    Although a Layer 3 device may have multiple IP addresses configured on different interfaces, some routing protocols need to identify the device using one IP address, the router ID.
  17. Configuring IP Forwarding Parameters
    Various IP packet forwarding behaviors can be enabled or disabled.
  18. Configuring a Default Network Route
    A Layer 3 device enables you to specify a candidate default route without the need to specify the next hop gateway. If the IP route table does not contain an explicit default route (for example, 0.0.0.0/0) or propagate an explicit default route through routing protocols, the software can use the default network route as a default route instead.
  19. IP Load Sharing
  20. Configuring IPv4 Option Type Filters
    The IPv4 options drop feature drops IPv4 packets if they have any header options such as insert NOP (No Operation), insert loose source route, or insert MTU probe.
  21. 31-Bit Subnet Masks on Point-to-Point Networks
  22. UDP broadcast and IP helper
  23. Enabling or Disabling Layer 2 Switching
  24. Configuring Delay Time for Notifying VE Down Event
    When all the ports in the VLAN go into an inactive state (for example, the non-forwarding state), the device notifies the Layer 3 protocols of the VE down event only after the configured timer expires. Once the timer expires, the device checks if any of the ports is in the forwarding state. If no ports are in the forwarding state, the device notifies the Layer 3 protocols of the VE down event. If any of the ports is in the forwarding state, the device ignores the down event.
  25. Specifying a Single Source Interface for Specified Packet Types
  26. Displaying IP Configuration Information
    You can use various show commands to view the IP configuration on a device.
  27. Disabling IP Checksum Check
  28. Clearing IP routes
  29. Displaying IP Traffic Statistics