Lancom Systems LCOS 3.50 manuals

Lancom systems LCOS 3.50 User Manual (346 pages)

Brand: Lancom-systems | Category: Computers | Size: 5.41 MB |

English

Table of contents

Reference Manual

1

LANCOM LCOS 3.50

1

Contents

3

1Preface

10

2 System design

13

System design

14

Configuration and manage

15

3.2 Configuration software

16

LANCAPI

21

3.5.1 How to start a trace

26

3.5.2 Overview of the keys

27

3.5.4 Combination commands

28

3.5.5 Examples

29

3.8 Command line interface

32

3.8.1 Command line reference

33

3.9 Scheduled Events

34

4 Management

37

4.1.1 Application examples

38

Management

39

4.1.2 Configuration

42

5 Diagnosis

46

Diagnosis

47

5.2.1 How to start a trace

48

5.2.2 Overview of the keys

49

5.2.4 Combination commands

50

5.2.5 Examples

51

6 Security

52

Security

53

6.1.2 Login barring

54

6.2.1 Identification control

58

6.2.2 Callback

60

6.3 The security checklist

61

7 Routing and WAN connections

64

7.2 IP routing

66

7.2.2 Local routing

68

Configuration tool Menu/table

72

7.2.4 SYN/ACK speedup

73

7.3.1 Simple masquerading

74

Source IP Port

75

7.3.2 Inverse masquerading

78

7.4 N:N mapping

80

7.4.1 Application examples

81

7.4.2 Configuration

85

7.5.1 Name list

89

7.5.2 Layer list

90

Parameter Meaning

91

7.6.1 The protocol

92

In this column of

97

7.8 Callback functions

98

Routing and WAN

100

With this

100

8Firewall

104

8.1.3 The methods

105

8.1.4 The victims

106

8.2 What is a Firewall?

107

Firewall

108

8.3 The LANCOM Firewall

114

8.3.2 Special protocols

119

Configuration tool Run

132

Firewall wizard

141

Condition Description Object

148

Limit Description Object

148

Measure Description Object

150

8.3.9 Firewall diagnosis

151

Configuration tool

152

Element Element meaning

153

Entry Description

155

Flag Flag meaning

158

8.3.10 Firewall limitations

159

Detection

160

9 Quality of Service

168

Quality of Service

169

9.3 The queue concept

172

Packet size in bytes

180

1 64 128 256 512 1024 1500

180

9.7 QoS configuration

183

Transfer External

188

10 Virtual LANs (VLANs)

192

10.2.1 Frame tagging

193

Virtual LANs (VLANs)

194

10.2.3 Application examples

195

10.3 Configuration of VLANs

198

10.3.2 The port table

199

11 Wireless LAN – WLAN

203

Wireless LAN – WLAN

204

11.2.1 Some basic concepts

214

11.2.2 WEP

215

11.2.3 WEPplus

219

11.2.4 EAP and 802.1x

220

11.2.5 TKIP and WPA

223

11.2.6 AES and 802.11i

230

11.2.7 Summary

231

11.4.1 WLAN security

234

Configuration tool Menu/Table

235

11.4.2 General WLAN settings

243

√ (λ * d)

257

11.5.2 Antenna power

258

Maximum distance [km]

262

Mbps P2P P2mP

262

 Assumed cable loss: 9 dB

263

 Antenna gain: 8.5 dBi

263

 Assumed cable loss: 6 dB

263

Office communications with

265

12.3 How to use the LANCAPI

270

12.4 The LANCOM CAPI Faxmodem

270

13.1.1 The DHCP server

272

Server services for the LAN

273

13.2 DNS

277

13.2.2 DNS forwarding

279

Configuration tool Run/Table

280

13.2.4 URL blocking

283

13.2.5 Dynamic DNS

284

13.3 Call charge management

285

13.4 The SYSLOG module

287

Source Meaning Facility

289

/etc/syslog.conf

290

/var/log/lancom.log

290

14.1 What does VPN offer?

291

Virtual Private Networks—

292

14.2 LANCOM VPN: an overview

295

14.2.3 LANCOM VPN functions

297

14.3.1 LAN-LAN coupling

298

14.5.3 Inspect VPN rules

309

14.6.1 Static/static

323

14.6.2 Dynamic/static

323

Branch_office

324

14.7 How does VPN work?

326

14.7.2 Alternatives to IPSec

328

14.8.5 Key management – IKE

335

16 Index

338

Lancom Systems devices