3Com 3C17300A-US Implementation Guide - Page 74

How Your Switch Obtains IP Information, How Automatic IP Configuration Works, Manual IP Configuration

Get 3Com 3C17300A-US - Switch 4200 PDF manuals and user guides
UPC - 662705493145
View all 3Com 3C17300A-US manuals
Add to My Manuals
Save this manual to your list of manuals

Page 74 highlights

74 CHAPTER 9: USING AUTOMATIC IP CONFIGURATION How Your Switch Obtains IP Information You can use one of the following methods to allocate IP information to your Switch (essential if you wish to manage your Switch across the network): ■ Automatic IP Configuration (default) - the Switch tries to configure itself with IP information. It uses the following industry standard methods to automatically allocate the Switch IP information: ■ Dynamic Host Configuration Protocol (DHCP) ■ Auto-IP - the Switch will configure itself with its default IP address 169.254.100.100 if it is operating in a standalone mode, and/or no other Switches on the network have this IP address. If this default IP address is already in use on the network then the Switch detects this and configures itself with an IP address in the range 169.254.1.0 to 169.254.254.255. ■ Bootstrap Protocol (BOOTP) For ease of use, you do not have to choose between these three automatic configuration methods. The Switch tries each method in a specified order as described in "Automatic Process" on page 75. ■ Manual IP Configuration - you can manually input the IP information (IP address, subnet mask, and default gateway). If you select an option for no IP configuration the Switch will not be accessible from a remote management workstation on the LAN. In addition, the Switch will not be able to respond to SNMP requests. How Automatic IP Configuration Works When your Switch is powered up for the first time the IP configuration setting is set to automatic - this is the default setting. If your Switch has been powered up before, whichever of the three options for IP configuration (manual, automatic, none) was last configured is activated when the Switch powers up again. You can switch to manual IP configuration at any time using a serial port connection to set up the IP information. For more information see the Getting Started Guide that accompanies your Switch.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
74
C
HAPTER
9: U
SING
A
UTOMATIC
IP C
ONFIGURATION
How Your Switch
Obtains IP
Information
You can use one of the following methods to allocate IP information to
your Switch (essential if you wish to manage your Switch across the
network):
■
Automatic IP Configuration
(default) — the Switch tries to
configure itself with IP information. It uses the following industry
standard methods to automatically allocate the Switch IP information:
■
Dynamic Host Configuration Protocol (DHCP)
■
Auto-IP — the Switch will configure itself with its default IP address
169.254.100.100 if it is operating in a standalone mode, and/or no
other Switches on the network have this IP address. If this default
IP address is already in use on the network then the Switch detects
this and configures itself with an IP address in the range
169.254.1.0 to 169.254.254.255.
■
Bootstrap Protocol (BOOTP)
For ease of use, you do not have to choose between these three
automatic configuration methods. The Switch tries each method in a
specified order as described in
“Automatic Process”
on
page 75
.
■
Manual IP Configuration
— you can manually input the IP
information (IP address, subnet mask, and default gateway).
If you select an option for no IP configuration the Switch will not be
accessible from a remote management workstation on the LAN. In
addition, the Switch will not be able to respond to SNMP requests.
How Automatic IP
Configuration
Works
When your Switch is powered up for the first time the IP configuration
setting is set to
automatic
— this is the default setting.
If your Switch has been powered up before, whichever of the three
options for IP configuration (
manual, automatic, none
) was last
configured is activated when the Switch powers up again.
You can switch to manual IP configuration at any time using a serial port
connection to set up the IP information. For more information see the
Getting Started Guide that accompanies your Switch.