3Com 4210G Series, Configuration Manual, Page: 820 / 1133

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Logging In to an Ethernet Switch
When logging in to an Ethernet switch, go to these sections for information you are interested in:
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Logging In to an Ethernet Switch
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Introduction to User Interface
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Specifying Source for Telnet Packets
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Controlling Login Users
Logging In to an Ethernet Switch
You can log in to an switch 4210G in one of the following ways:
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Logging In Through the Console Port
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Logging In Through Telnet/SSH
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User Interface Configuration Examples
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Logging in Through Web-based Network Management System
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Logging In Through NMS
Introduction to User Interface
Supported User Interfaces
Switch 4210G supports two types of user interfaces: AUX and VTY.
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AUX port: Used to manage and monitor users logging in via the console port. The device provides
AUX ports of EIA/TIA-232 DTE type. The port is usually used for the first access to the switch.
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VTY (virtual type terminal): Used to manage and monitor users logging in via VTY. VTY port is
usually used when you access the device by means of Telnet or SSH.
Table 1-1
Description on user interface
User interface Applicable user Port used Description
AUX
Users logging in through
the Console port
Console port
Each switch can accommodate
one AUX user.
VTY
Telnet users and SSH
users
Ethernet port
Each switch can accommodate
up to five VTY users.
As the AUX port and the Console port of a 3Com Switch 4210G family are the same one, you will be in
the AUX user interface if you log in through this port.