Configuring IP Addressing

IP Configuration

use the menu interface or the CLI to manually configure the initial IP values. After you have network access to a device, you can use the web browser interface to modify the initial IP configuration if needed.

For information on how IP addressing affects switch operation, refer to “How IP Addressing Affects Switch Operation” on page 8-11.

Multinetting: Assigning Multiple IP Addresses to a VLAN. For a given VLAN you can assign up to 8 IP addresses. 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.

Default Gateway Operation. The default gateway is required when a router is needed for tasks such as reaching off-subnet destinations or forward­ ing 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 destina­ tion 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 his gateway, even if a different gateway is received via DHCP or Bootp on the primary VLAN. This is also true for manually configured TimeP, SNTP, and Time-To-Live(TTL). (In the default configuration, VLAN 1 is the Primary VLAN.) Refer to the information on Primary VLANs in the Advanced Traffic Management Guide for your switch.

Packet Time-To-Live (TTL) . This parameter specifies the maximum num­ ber of routers (hops) through which a packet can pass before being discarded. Each router decreases a packet’s TTL by 1 before forwarding the packet. If decreasing the TTL causes the TTL to be 0, the router drops the packet instead of forwarding it. In most cases, the default setting (64) is adequate.

Just Want a Quick Start with IP Addressing?

If you just want to give the switch an IP address so that it can communicate on your network, or if you are not using VLANs, ProCurve recommends that you use the Switch Setup screen to quickly configure IP addressing. To do so, do one of the following:

■Enter setup at the CLI Manager level prompt.

ProCurve# setup

■Select 8. Run Setup in the Main Menu of the menu interface.

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