Color Key

Description of the color coding.

Figure 17 Color Key

Administration Settings

The Administration menu includes eight administration items:

IP Setup

Backup & Restore

Firmware Upgrade

Reset

System Access

Administration Settings

37

System Name

System Time

SNMP

Modifying the IP Address Settings

To enable devices on the network to communicate with the Switch, you need to assign an IP address to it — either by DHCP or by assigning a static IP address.

To enable devices on the network to communicate with the Switch, the Switch will either obtain an IP address from a DHCP server (default operation), or if this is not successful, will allocate itself an IP address. You can use the console interface or the 3Com Switch Detect application (with certain limitations) to see what IP address the Switch will use.

Automatic IP Configuration

When you power on the Switch for the first time, it will, for a period of approximately 2 minutes, automatically request an IP address from a DHCP server. This is referred to as auto mode. If at the end of this period there has been no response from the DHCP server (if one is present in the network), it will allocate itself an Auto IP address.

The Switch will use the default IP address 169.254.x.y, where x and y are the last two bytes of its MAC address.

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3Com 2250-SFP, 2226-SFP Administration Settings, Modifying the IP Address Settings, Automatic IP Configuration, Color Key