Configuration > IP Configuration

IP Configuration

The IP Configuration window configures the Internet Protocol parameters, allowing the device to receive and send IP packets. In its factory default configuration, the switch operates as a multiport learning bridge with network connectivity provided by the ports on the switch. To enable IP-dependent features, you will need IP addressing. However, an IP address may not be required if you are installing the switch in a ProCurve stack management environment.

In the factory-default configuration, the switch has one permanent default VLAN (named DEFAULT_VLAN) that includes all ports on the switch. Thus, when only the default VLAN exists in the switch, if you assign an IP address and subnet mask to the switch, you are actually assigning the IP addressing to the DEFAULT_VLAN.

Although recommended, a default gateway (IP) address for the switch is optional. The default VLAN is the primary VLAN for the switch. The switch uses the primary VLAN to learn the default gateway address. The switch can also learn other settings from a DHCP or BootP server, such as Time-To-Live (TTL) and TimeP SNMP settings. Other VLANs can also use DHCP or BootP to acquire IP addressing. However, the switch’s gateway, TTL, and TimeP or SNTP values, which are applied globally, and not per-VLAN, are acquired through the primary VLAN only, unless manually set. If these parameters are manually set, they will not be overwritten by alternate values received from a DHCP or BootP server.

If multiple VLANs are configured, then each VLAN can have its own IP address. This is because each VLAN operates as a separate broadcast domain and requires a unique IP address and subnet mask. For additional information on VLANs, refer to the Advanced Traffic Management Guide for your switch.

To configure IP parameters:

  1. Select the IP version the switch uses: IPv4 or IPv6.

  2. If you selected IPv4, in the Default Gateway field, type the IP address of a local router whose subnetwork you want to manage and click Apply.

The default gateway is required when a router is needed for tasks such as reaching off-subnet destinations or forwarding traffic across multiple VLANs. The gateway value is the IP address of the next-hop gateway node for the switch, which is used if the requested destination address is not on a local subnet/VLAN.

If the switch does not have a manually-configured default gateway and DHCP/BootP is configured on the primary VLAN, then the default gateway value provided by the DHCP or BootP server will be used. If the switch has a manually configured default gateway, then the switch uses this gateway, even if a different gateway is received via DHCP or BootP on the primary VLAN.

  1. In the Select VLAN field, select the VLAN to which you want to assign a new IP address or to edit the existing IP addressing.

  2. The VLAN field appears only if multiple VLANs are configured in the switch.

  1. If using IPv4, in the IP Configuration field, select one of the following IP configurations:

DHCP/BootP

The switch (or selected VLAN, if configured) gets its IP configuration (or a more extensive configuration) from a DHCP or BootP server, which makes it possible to assign and configure IP addresses automatically when a client requests one.

For more information on this feature, see the Online Users Guide on the network management product CD-ROM (for example, HP ProCurve Manager) and the Advanced Traffic Management Guide for your switch.

  • Selecting DHCP/BootP assumes that a server on the network has already been configured to provide the necessary configuration to the switch. Implementing this option interrupts connectivity between the browser interface and the switch. DHCP and BootP cannot configure secondary IP addresses (for multinetting).

Manual

You will manually create the IP configuration. With this setting, you must type the IP Address, Subnet Mask, and Default Gateway for the switch (or selected VLAN, if configured).

  • This field can be used to add multinetted IP addresses.

Disabled

The switch (or selected VLAN, if configured) is configured as an unmanaged device (a transparent learning bridge). While disabled, the only method of management access is through a terminal device directly connected to the switch's Console RS-232 port. For more information, refer to the Management and Configuration Guide for your switch.

  1. If using IPv6 and you want to enable IPv6 for VLANs, check the Enable IPv6 for Vlan check box.

  2. If using IPv6 and you want to use automatic configuration for VLANs, check the Enable Auto Config check box.

  3. If using IPv6, in the Select DHCP/Manual field, select DHCP if you want DHCP to automatically configure the IP address or select Manual to manually configure the IP address.

  4. If you selected Manual IP Configuration for IPv6, enter the values for the following fields that appear:

IPv6 Address

Type the IP address for the switch (or selected VLAN, if configured) in the x.x.x.x format, where x is a decimal number between 0 and 255.

You can assign one primary IP address and up to seven secondary IP addresses to a VLAN. This allows you to combine two or more subnets on the same VLAN, which enables devices in the combined subnets to communicate normally through the network without needing to reconfigure the IP addressing in any of the combined subnets.

For IP addressing with multiple VLANs, see the Management and Configuration Guide for your switch.

  • Changing the IP address ends the connection to the switch. You must enter the new address as the URL to reconnect.

Subnet Prefix Length

Number of right-most bits that comprise the interface identifier. An IPv6 identifier for a unicast or Anycast address can be automatically generated from the switch's MAC address using EUI-64 (Extended Unique Identifier) format.

Options

Type of interface identifier:

Anycast

Single IP address assigned to multiple interfaces, possibly on separate devices within a defined address scope, where any of the interfaces having the Anycast address can provide the desired service or response. A packet sent to an Anycast address is delivered only to the nearest interface having an instance of the address. This option is useful where multiple servers provide the same service, and it does not matter to the client which source it uses to acquire the service.

EUI-64

Extended Unique Identifier format is used to create a device identifier based on the VLAN MAC address.

If IPv6 is not already enabled on a VLAN, selecting EUI-64 enables IPv6 on the VLAN, configures a link-local address using the EUI-64 format, and statically configures a global unicast address.

If IPv6 is already enabled on the VLAN, selecting EUI-64 statically configures a global unicast address, but have no effect on the current link-local address.

LinkLocal

Unicast address (non-routable address for use on a single VLAN interface) that provides basic connectivity to an IPv6 network. Because the scope of a link-local address is restricted to the VLAN on which the address is used, a link-local address must be unique only for the VLAN on which it is configured. (Traffic with a link-local source or destination address cannot be routed between VLANs.)

  1. If you selected DHCP IP Configuration for IPv6, select the Options:

  2. A DHCPv6-assigned address can be configured on a VLAN only when the assigned address is not on the same subnet as a previously configured autoconfig address. The DHCPv6-assigned address will be dropped if it has the same subnet as another address already assigned to the VLAN by an earlier autoconfig command.

 

Full rapid-commit

Expedites DHCP configuration by using a two-message exchange with the server (solicit-reply) instead of the default four-message exchange (solicit-advertise- request-reply)

Full

Enables IPv6 and causes the switch to autoconfigure a link-local unicast address with an EUI-64 interface identifier

  • A DHCPv6 server does not assign link-local addresses, and enabling DHCPv6 on a VLAN does not affect a pre-existing link-local address configured on the VLAN.

Disable

Disables IP configuration by DHCP

  1. Click Apply Changes to activate the changes.