3Com 3CR856-95 manual Troubleshooting, Using Discovery, IP Addressing

Models: 3CR856-95

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LAN Settings

35

 

 

 

 

 

LAN IP Settings

35

 

 

 

DHCP Clients List

37

 

 

 

Internet Settings

38

 

 

 

 

Connection to ISP

39

 

 

Setting up NAT

43

 

 

 

Configuring the Firewall

 

45

 

 

The Virtual Servers Menu

45

 

PC Privileges

47

 

 

 

 

Special Applications

49

 

 

Advanced

52

 

 

 

 

 

Configuring VPNs

53

 

 

 

 

Setting the VPN Mode

53

 

 

Viewing VPN Connections

55

 

Editing IPSec Routes

 

60

 

 

Accessing the System Tools

61

 

Restart 61

 

 

 

 

 

Time Zone

62

 

 

 

 

Loading and Saving the Gateway Configuration

62

Upgrading the Firmware of your Gateway 63

 

Viewing Status and Logs

64

 

 

Obtaining Support and Feedback for your Gateway

65

Troubleshooting

67

 

 

 

 

Basic Connection Checks

67

 

 

Browsing to the Gateway Configuration Screens

67

Connecting to the Internet

68

 

Forgotten Password

68

 

 

Alert LED

69

 

 

 

Recovering from Corrupted Software

69

Frequently Asked Questions

70

 

Using Discovery

71

 

 

 

Running the Discovery Application

71

Windows Installation (95/98/2000/Me/NT) 71

IP Addressing

 

73

 

 

 

The Internet Protocol Suite

73

 

How does a Device Obtain an IP Address and Subnet Mask? 74

DHCP Addressing

74

 

 

Static Addressing

74

 

 

Auto-IP Addressing

75

 

 

Private IP Addresses

75

 

 

Technical Specifications

77

 

 

Interfaces

77

 

 

 

Operating Temperature

77

 

Power

77

 

 

 

Humidity

77

 

 

 

Dimensions 77

 

 

 

Weight

 

77

 

 

 

Standards

77

 

 

 

System Requirements

78

 

 

Operating Systems

78

 

 

Ethernet Performance

78

 

 

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3Com 3CR856-95 manual Troubleshooting, Using Discovery, IP Addressing