Appendix A
Configuring IP Parameters
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Make sure that every device has a unique IP address. Make sure that all devices on a given IP network number have the same subnet mask.
The IP configuration parameters are described below.
IP Address . The IP address of the hub, bridge, or switch is written in the format X.X.X.X, where each X is a decimal number between 1 and 254. Every IP address on a network must be unique.
The default value, 0.0.0.0, disables IP communications. Use the default value only if you are not going to manage the device with HP TopTools for Hubs & Switches and you want to disable IP communications for that device.
Subnet Mask. The bit mask defines which portion of the IP address is the subnet address and is written in the format X.X.X.X. The default value is automatically generated and depends on the class of IP address that you entered. See your network administrator for the subnet mask address. All devices on a given IP network number must use the same subnet mask address.
Primary Default Router. The routing IP address of the nearest router in your network. The default is 0.0.0.0.
Backup Default Router. The IP address of the router to use when the primary default router is inaccessible. The default value is 0.0.0.0. If there is no backup router and no primary default router, use the default.
Time To Live . The number of IP routers a packet is allowed to cross before the packet is discarded. The default value is 32. Increase this value if the hub, bridge, or switch is managed from a network management station that is more than 32 routers away. The maximum allowable value is 255.
For selected devices, such as the HP J2980A AdvanceStack 10/100 LAN
To configure a device for IP networks, use the device's console port interface. Refer to the device's Installation and Reference Guide for use of the device's
For HP hubs, HP TopTools for Hubs & Switches can be used to change IP addresses after they have been initially assigned during installation.
