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GS-4012F
ZyXEL Communications GS-4012F User Manual
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GS-4012F
Ethernet Switch
User
’
s Guide
V
ersion 3.60
4/2005
2
Table of Contents
Default Chapter
2
Copyright
2
Interference Statements and Warnings
3
Safety Warnings
4
Zyxel Limited Warranty
5
Customer Support
6
Table of Contents
8
List of Figures
20
List of Tables
26
Preface
30
User Guide Feedback
31
Chapter 1 Getting to Know Your Switch
32
Introduction
32
Software Features
32
Hardware Features
35
Applications
36
Backbone Application
36
Bridging Example
36
Figure 1 Backbone Application
36
High Performance Switching Example
37
IEEE 802.1Q VLAN Application Examples
37
Figure 2 Bridging Application
37
Figure 3 High Performance Switched Workgroup Application
37
Figure 4 Tag-Based VLAN Application
38
Figure 5 Shared Server Using VLAN Example
38
Tag-Based VLAN Example
38
VLAN Shared Server Example
38
Chapter 2 Hardware Installation and Connection
40
Freestanding Installation
40
Figure 6 Attaching Rubber Feet
40
Mounting the Switch on a Rack
41
Rack-Mounted Installation Requirements
41
Precautions
41
Attaching the Mounting Brackets to the Switch
41
Figure 7 Attaching the Mounting Brackets
41
Figure 8 Mounting the Switch on a Rack
42
Chapter 3 Hardware Overview
44
Front Panel Connection
44
Console Port
44
Figure 9 Front Panel
44
Table 1 Front Panel
44
Gigabit Ethernet Ports
45
Default Ethernet Settings
45
SFP Slots
45
Transceiver Installation
45
Transceiver Removal
46
Figure 10 Transceiver Installation Example
46
Figure 11 Installed Transceiver
46
Figure 12 Opening the Transceiver's Latch Example
46
Rear Panel
47
Power Connector
47
External Backup Power Supply Connector
47
Figure 13 Transceiver Removal Example
47
Figure 14 Rear Panel
47
Front Panel Leds
48
Table 2 Front Panel Leds
48
Chapter 4 The Web Configurator
50
Introduction
50
System Login
50
Figure 15 Web Configurator: Login
50
The Status Screen
51
Figure 16 Web Configurator Home Screen (Status)
51
Table 3 Navigation Panel Sub-Links Overview
52
Table 4 Web Configurator Screen Sub-Links Details
52
Table 5 Navigation Panel Links
53
Change Your Password
55
Switch Lockout
55
Figure 17 Change Administrator Login Password
55
Resetting the Switch
56
Reload the Configuration File
56
Logging out of the Web Configurator
57
Help
57
Figure 18 Resetting the Switch: Via the Console Port
57
Figure 19 Web Configurator: Logout Screen
57
Chapter 5 Initial Setup Example
58
Overview
58
Configuring an IP Interface
58
Figure 20 Initial Setup Network Example: IP Interface
58
Configuring DHCP Server Settings
59
Creating a VLAN
60
Figure 21 Initial Setup Network Example: VLAN
60
Setting Port VID
61
Figure 22 Initial Setup Network Example: Port VID
61
Enabling RIP
62
System Status and Port Statistics
64
Overview
64
Port Status Summary
64
Figure 23 Status
64
Chapter 6 System Status and Port Statistics
64
Port Details
65
Table 6 Status
65
Figure 24 Status: Port Details
66
Table 7 Status: Port Details
66
Chapter 7 Basic Setting
70
Overview
70
System Information
70
Figure 25 System Info
71
Table 8 System Info
71
General Setup
72
Figure 26 General Setup
73
Table 9 General Setup
73
Introduction to Vlans
74
IGMP Snooping
75
Switch Setup Screen
75
Figure 27 Switch Setup
75
Table 10 Switch Setup
76
IP Setup
77
IP Interfaces
77
Figure 28 IP Setup
78
Table 11 IP Setup
78
Port Setup
79
Figure 29 Port Setup
80
Table 12 Port Setup
80
Chapter 8 VLAN
82
Introduction to IEEE 802.1Q Tagged Vlans
82
Forwarding Tagged and Untagged Frames
82
Automatic VLAN Registration
83
Garp
83
GARP Timers
83
Gvrp
83
Table 13 GARP Terminology
83
Port VLAN Trunking
84
Select the VLAN Type
84
Figure 30 Port VLAN Trunking
84
Static VLAN
85
Static VLAN Status
85
Figure 31 Switch Setup: Select VLAN Type
85
Figure 32 VLAN: VLAN Status
85
Configure a Static VLAN
86
Table 14 VLAN: VLAN Status
86
Figure 33 VLAN: Static VLAN
87
Table 15 VLAN: Static VLAN
87
Configure VLAN Port Settings
88
Figure 34 VLAN: VLAN Port Setting
88
Table 16 VLAN: VLAN Port Setting
88
Port-Based Vlans
89
Configure a Port-Based VLAN
89
Figure 35 Port Based VLAN Setup (All Connected)
90
Figure 36 Port Based VLAN Setup (Port Isolation)
90
Table 17 Port Based VLAN Setup
91
Chapter 9 Static MAC Forward Setup
92
Overview
92
Configuring Static MAC Forwarding
92
Figure 37 Static MAC Forwarding
92
Table 18 Static MAC Forwarding
93
Chapter 10 Filtering
94
Overview
94
Configure a Filtering Rule
94
Figure 38 Filtering
94
Table 19 Filtering
94
Chapter 11 Spanning Tree Protocol
96
Overview
96
STP Terminology
96
Table 20 STP Path Costs
96
How STP Works
97
STP Port States
97
STP Status
97
Table 21 STP Port States
97
Figure 39 Spanning Tree Protocol: Status
98
Table 22 Spanning Tree Protocol: Status
98
Configure STP
99
Figure 40 Spanning Tree Protocol: Configuration
99
Table 23 Spanning Tree Protocol: Configuration
99
Chapter 12 Bandwidth Control
102
Configuring
102
Figure 41 Bandwidth Control
102
Table 24 Bandwidth Control
102
Chapter 13 Broadcast Storm Control
104
Overview
104
Broadcast Storm Control Setup
104
Figure 42 Broadcast Storm Control
104
Table 25 Broadcast Storm Control
105
Chapter 14 Mirroring
106
Overview
106
Port Mirroring Configuration
106
Figure 43 Mirroring
106
Table 26 Mirroring
107
Chapter 15 Link Aggregation
108
Overview
108
Dynamic Link Aggregation
108
Link Aggregation ID
109
Link Aggregation Status
109
Figure 44 Link Aggregation Control Protocol Status
109
Table 27 Link Aggregation ID: Local Switch
109
Table 28 Link Aggregation ID: Peer Switch
109
Link Aggregation Setup
110
Table 29 Link Aggregation Control Protocol: Status
110
Figure 45 Link Aggregation Control Protocol: Configuration
111
Table 30 Link Aggregation Control Protocol: Configuration
111
Chapter 16 Port Authentication
114
Overview
114
Radius
114
Configuring Port Authentication
114
Figure 46 RADIUS Server
114
Activating IEEE 802.1X Security
115
Figure 47 Port Authentication
115
Figure 48 Port Authentication: 802.1X
115
Table 31 Port Authentication: 802.1X
115
Configuring RADIUS Server Settings
116
Figure 49 Port Authentication: RADIUS
116
Table 32 Port Authentication: RADIUS
116
Chapter 17 Port Security
118
Overview
118
Port Security Setup
118
Figure 50 Port Security
118
Table 33 Port Security
119
Chapter 18 Classifier
120
Overview
120
Configuring the Classifier
120
Figure 51 Classifier
121
Table 34 Classifier
121
Viewing and Editing Classifier Configuration
123
Figure 52 Classifier: Summary Table
123
Table 35 Classifier: Summary Table
123
Table 36 Common Ethernet Types and Protocol Number
123
Classifier Example
124
Table 37 Common IP Ports
124
Figure 53 Classifier: Example
125
Chapter 19 Policy Rule
126
Overview
126
Diffserv
126
DSCP and Per-Hop Behavior
126
Configuring Policy Rules
126
Figure 54 Policy
127
Table 38 Policy
128
Viewing and Editing Policy Configuration
129
Figure 55 Policy: Summary Table
129
Table 39 Policy: Summary Table
129
Policy Example
130
Figure 56 Policy Example
131
Queuing Method
132
Overview
132
Strict Priority Queuing (SPQ)
132
Figure 57 Queuing Method
132
Table 40 Physical Queue Priority
132
Chapter 20 Queuing Method
132
Weighted Round Robin Scheduling (WRR)
133
Configuring Queuing
133
Table 41 Queuing Method
135
Chapter 21 VLAN Stacking
136
Introduction
136
VLAN Stacking Example
136
VLAN Stacking Port Roles
137
VLAN Tag Format
137
Figure 58 VLAN Stacking Example
137
Table 42 VLAN Tag Format
137
Figure 59 VLAN Stacking
138
Frame Format
138
Table 43 Single and Double Tagged 802.11Q Frame Format
138
Table 44 802.1Q Frame
138
Configuring VLAN Stacking
139
Table 45 VLAN Stacking
139
Chapter 22 Static Route
142
Configuring
142
Figure 60 Static Routing
142
Table 46 Static Routing
142
Chapter 23 RIP
144
Overview
144
Configuring
144
Figure 61 RIP
144
Table 47 RIP
144
Chapter 24 OSPF
146
Overview
146
OSPF Autonomous Systems and Areas
146
Table 48 OSPF Vs. RIP
146
Table 49 OSPF: Router Types
146
How OSPF Works
147
Interfaces and Virtual Links
147
Configuring OSPF
147
Figure 62 OSPF Network Example
147
OSPF Status
148
Figure 63 OSPF Status
148
Table 50 OSPF Status
148
Enabling OSPF and General Settings
149
Table 51 OSPF Status: Common Output Fields
149
Figure 64 OSPF Configuration: Activating and General Settings
150
Table 52 OSPF Configuration: Activating and General Settings
150
Configuring OSPF Areas
151
Figure 65 OSPF Configuration: Area Setup
151
Table 53 OSPF Configuration: Area Setup
151
Figure 66 OSPF Configuration: Summary Table
152
Table 54 OSPF Configuration: Summary Table
152
Viewing OSPF Area Information Table
152
Configuring OSPF Interfaces
153
Figure 67 OSPF Interface
153
Table 55 OSPF Interface
153
OSPF Virtual Links
154
Figure 68 OSPF Virtual Link
154
Table 56 OSPF Virtual Link
154
Chapter 25 IGMP
156
Overview
156
Configuring
156
Figure 69 IGMP
156
Table 57 IGMP
157
Chapter 26 DVMRP
158
Overview
158
How DVMRP Works
158
Table 58 DVMRP
158
DVMRP Terminology
159
Configuring DVMRP
159
Figure 70 How DVMRP Works
159
Figure 71 DVMRP
159
DVMRP Configuration Error Messages
160
Figure 72 DVMRP: IGMP/RIP Not Set Error
160
Figure 73 DVMRP: Unable to Disable IGMP Error
160
Default DVMRP Timer Values
161
Figure 74 DVMRP: Duplicate VID Error Message
161
Table 59 DVMRP: Default Timer Values
161
Chapter 27 IP Multicast
162
Overview
162
Configuring
162
Figure 75 IP Multicast
162
Table 60 IP Multicast
163
Differentiated Services
164
Overview
164
DSCP and Per-Hop Behavior
164
Diffserv Network Example
164
Figure 76 Diffserv: Differentiated Service Field
164
Chapter 28 Differentiated Services
164
Activating Diffserv
165
Figure 77 Diffserv Network Example
165
Figure 78 Diffserv
165
Table 61 Diffserv
165
DSCP-To-Ieee802.1P Priority Mapping
166
Configuring DSCP Settings
166
Figure 79 Diffserv: DSCP Setting
166
Table 62 Default DSCP-Ieee802.1P Mapping
166
Table 63 Diffserv: DSCP Setting
167
Chapter 29 DHCP
168
Overview
168
DHCP Modes
168
DHCP Server Status
168
Configuring DHCP Server
169
Figure 80 DHCP: DHCP Server Status
169
Table 64 DHCP: DHCP Server Status
169
Figure 81 DHCP: Server
170
Table 65 DHCP: Server
170
DHCP Server Configuration Example
171
Configuring DHCP Relay
171
Figure 82 DHCP Server Network Example
171
Figure 83 DHCP Server Configuration Example
171
DHCP Relay Agent Information
172
Figure 84 DHCP: Relay
172
Table 66 DHCP: Relay
172
DHCP Relay Configuration Example
173
Figure 85 DHCP Relay Network Example
173
Figure 86 DHCP Relay Configuration Example
173
Chapter 30 VRRP
174
Overview
174
Figure 87 VRRP: Example 1
174
Viewing VRRP Status
175
Figure 88 VRRP Status
175
Table 67 VRRP Status
175
Configuring VRRP
176
IP Interface Setup
176
Figure 89 VRRP Configuration: IP Interface
176
VRRP Parameters
177
Advertisement Interval
177
Priority
177
Preempt Mode
177
Table 68 VRRP Configuration: IP Interface
177
Configuring VRRP Parameters
178
Figure 90 VRRP Configuration: VRRP Parameters
178
Table 69 VRRP Configuration: VRRP Parameters
178
VRRP Configuration Summary
179
VRRP Configuration Examples
179
One Subnet Network Example
179
Figure 91 VRRP Configuration: Summary
179
Table 70 VRRP Configuring: VRRP Parameters
179
Figure 92 VRRP Configuration Example: One Virtual Router Network
180
Figure 93 VRRP Example 1: VRRP Parameter Settings on Switch a
180
Figure 94 VRRP Example 1: VRRP Parameter Settings on Switch B
180
Two Subnets Example
181
Figure 95 VRRP Example 1: VRRP Status on Switch a
181
Figure 96 VRRP Example 1: VRRP Status on Switch B
181
Figure 97 VRRP Configuration Example: Two Virtual Router Network
181
Figure 98 VRRP Example 2: VRRP Parameter Settings for VR2 on Switch a
182
Figure 99 VRRP Example 2: VRRP Parameter Settings for VR2 on Switch B
182
Figure 100 VRRP Example 2: VRRP Status on Switch a
182
Figure 101 VRRP Example 2: VRRP Status on Switch B
182
Chapter 31 Maintenance
184
The Maintenance Screen
184
Firmware Upgrade
184
Figure 102 Maintenance
184
Figure 103 Firmware Upgrade
184
Restore a Configuration File
185
Backing up a Configuration File
185
Figure 104 Restore Configuration
185
Figure 105 Backup Configuration
185
Load Factory Defaults
186
Reboot System
186
Figure 106 Load Factory Default: Conformation
186
Figure 107 Load Factory Default: Start
186
Figure 108 Reboot System: Confirmation
186
FTP Command Line
187
Filename Conventions
187
Example FTP Commands
187
Figure 109 Reboot System: Start
187
Table 71 Filename Conventions
187
FTP Command Line Procedure
188
GUI-Based FTP Clients
188
FTP over WAN Restrictions
189
Chapter 32 Access Control
190
Overview
190
The Access Control Main Screen
190
Figure 110 Console Port Priority
190
Figure 111 Access Control
190
Table 72 Access Control Summary
190
About SNMP
191
Figure 112 SNMP Management Model
191
SNMP Traps
192
Supported Mibs
192
Table 73 SNMP Commands
192
Table 74 SNMP Traps
192
Configuring SNMP
193
Figure 113 Access Control: SNMP
193
Setting up Login Accounts
193
Table 75 Access Control: SNMP
193
SSH Overview
194
Figure 114 Access Control: Logins
194
Table 76 Access Control: Logins
194
How SSH Works
195
Figure 115 SSH Communication Example
195
Figure 116 How SSH Works
195
SSH Implementation on the Switch
196
Requirements for Using SSH
196
Introduction to HTTPS
196
HTTPS Example
197
Internet Explorer Warning Messages
197
Figure 117 HTTPS Implementation
197
Netscape Navigator Warning Messages
198
Figure 118 Security Alert Dialog Box (Internet Explorer)
198
Figure 119 Security Certificate 1 (Netscape)
198
The Main Screen
199
Figure 120 Security Certificate 2 (Netscape)
199
Figure 121 Login Screen (Internet Explorer)
200
Figure 122 Login Screen (Netscape)
200
Service Port Access Control
201
Remote Management
201
Figure 123 Access Control: Service Access Control
201
Table 77 Access Control: Service Access Control
201
Figure 124 Access Control: Remote Management
202
Table 78 Access Control: Remote Management
202
Chapter 33 Diagnostic
204
Diagnostic
204
Table 79 Diagnostic
204
Chapter 34 Cluster Management
206
Overview
206
Figure 126 Clustering Application Example
206
Table 80 Zyxel Clustering Management Specifications
206
Cluster Management Status
207
Figure 127 Cluster Management: Status
207
Table 81 Cluster Management: Status
207
Cluster Member Switch Management
208
Uploading Firmware to a Cluster Member Switch
208
Figure 128 Cluster Management: Cluster Member Web Configurator Screen
208
Configuring Cluster Management
209
Figure 129 Example: Uploading Firmware to a Cluster Member Switch
209
Table 82 FTP Upload to Cluster Member Example
209
Figure 130 Clustering Management Configuration
210
Table 83 Clustering Management Configuration
210
Chapter 35 MAC Table
212
Overview
212
Figure 131 MAC Table Flowchart
212
Viewing the MAC Table
213
Figure 132 MAC Table
213
Table 84 MAC Table
213
Chapter 36 IP Table
214
Overview
214
Figure 133 IP Table Flowchart
214
Viewing the IP Table
215
Figure 134 IP Table
215
Table 85 IP Table
215
Chapter 37 ARP Table
216
Overview
216
How ARP Works
216
Viewing the ARP Table
216
Figure 135 ARP Table
217
Table 86 ARP Table
217
Chapter 38 Routing Table
218
Overview
218
Viewing the Routing Table
218
Figure 136 Routing Table Status
218
Table 87 Routing Table Status
218
Chapter 39 Introducing the Commands
220
Overview
220
Switch Configuration File
220
Accessing the CLI
220
Access Priority
221
The Console Port
221
Initial Screen
221
Telnet
221
Figure 137 Initial Console Port Screen
221
The Login Screen
222
Command Syntax Conventions
222
Figure 138 CLI: Login Screen
222
Getting Help
223
List of Available Commands
223
Figure 139 CLI Help: List of Commands: Example 1
223
Detailed Command Information
224
Command Modes
224
Figure 140 CLI Help: List of Commands: Example 2
224
Figure 141 CLI Help: Detailed Command Information: Example 1
224
Figure 142 CLI: Help: Detailed Command Information: Example 2
224
Using Command History
225
Saving Your Configuration
225
Figure 143 CLI: History Command Example
225
Figure 144 CLI: Write Memory
225
Logging out
226
Command Summary
226
User Mode
226
Table 88 Command Summary: User Mode
226
Enable Mode
227
Table 89 Command Summary: Enable Mode
227
Ospf Network
229
General Configuration Mode
231
Table 90 Command Summary: Configuration Mode
231
Interface Port-Channel Commands
242
Table 91 Interface Port-Channel Commands
243
Interface Route-Domain Commands
245
Config-Vlan Commands
246
Table 92 Interface Route-Domain Commands
246
Table 93 Command Summary: Config-Vlan Commands
246
Chapter 40 Command Examples
248
Overview
248
Show Commands
248
Show System-Information
248
Figure 145 Show System-Information Command Example
248
Show Hardware-Monitor
249
Show Ip
249
Figure 146 Show Hardware-Monitor Command Example
249
Show Logging
250
Show Interface
250
Figure 147 Show Ip Command Example
250
Figure 148 Show Logging Command Example
250
Show Mac Address-Table
251
Figure 149 Show Interface Command Example
251
Ping
252
Figure 150 Show Mac Address-Table Command Example
252
Figure 151 Ping Command Example
252
Traceroute
253
Enabling RSTP
253
Figure 152 Traceroute Command Example
253
Configuration File Maintenance
254
Backing up Configuration
254
Restoring Configuration
254
Figure 153 Enable RSTP Command Example
254
Figure 154 CLI: Backup Configuration Example
254
Using a Different Configuration File
255
Resetting to the Factory Default
255
Figure 155 CLI: Restore Configuration Example
255
Figure 156 CLI: Boot Config Command Example
255
Figure 157 CLI: Reload Config Command Example
255
No Command Examples
256
No Mirror-Port
256
No Https Timeout
256
Figure 158 CLI: Reset to the Factory Default Example
256
Figure 159 no Mirror-Port Command Example
256
Figure 160 no Https Timeout Command Example
256
No Trunk
257
No Port-Access-Authenticator
257
Figure 161 no Trunk Command Example
257
No Ssh
258
Interface Commands
258
Figure 162 no Port-Access-Authenticator Command Example
258
Figure 163 no Ssh Command Example
258
Figure 164 Interface Command Example
259
Interface Port-Channel
259
Interface Route-Domain
259
Bpdu-Control
260
Broadcast-Limit
260
Figure 165 Interface Command Example
260
Figure 166 Interface Bpdu-Control Command Example
260
Bandwidth-Limit
261
Figure 167 Broadcast-Limit Command Example
261
Figure 168 Bandwidth-Limit Command Example
261
Figure 169 Mirror Command Example
262
Gvrp
262
Mirror
262
Figure 170 Gvrp Command Example
263
Figure 171 Ingress-Check Command Example
263
Frame-Type
263
Ingress-Check
263
Figure 172 Frame-Type Command Example
264
Figure 173 Spq Command Example
264
Spq
264
Wrr
264
Egress Set
265
Figure 174 Wrr Command Example
265
Figure 175 Egress Set Command Example
265
Qos Priority
265
Figure 176 Qos Priority Command Example
266
Figure 177 Name Command Example
266
Figure 178 Speed-Duplex Command Example
266
Name
266
Speed-Duplex
266
Chapter 41 IEEE 802.1Q Tagged VLAN Commands
268
IEEE 802.1Q Tagged VLAN Overview
268
VLAN Databases
268
Static Entries (SVLAN Table)
268
Dynamic Entries (DVLAN Table)
269
Configuring Tagged VLAN
269
Figure 179 Tagged VLAN Configuration and Activation Example
269
Global VLAN1Q Tagged VLAN Configuration Commands
270
GARP Status
270
GARP Timer
270
Figure 180 CPU VLAN Configuration and Activation Example
270
Figure 181 GARP STATUS Command Example
270
GVRP Timer
271
Enable GVRP
271
Figure 182 GARP Timer Command Example
271
Figure 183 GVRP Status Command Example
271
Disable GVRP
272
Port VLAN Commands
272
Set Port VID
272
Set Acceptable Frame Type
272
Figure 184 Vlan1Q Port Default VID Command Example
272
Enable or Disable Port GVRP
273
Modify Static VLAN
273
Figure 185 Frame Type Command Example
273
Figure 186 no Gvrp Command Example
273
Forwarding Process Example
274
Modify a Static VLAN Table Example
274
Delete VLAN ID
274
Figure 187 Modifying Static VLAN Example
274
Enable VLAN
275
Disable VLAN
275
Show VLAN Setting
275
Figure 188 no Vlan Command Example
275
Figure 189 Show Vlan Command Example
276
Chapter 42 Troubleshooting
278
Problems Starting up the Switch
278
Problems Accessing the Switch
278
Table 94 Troubleshooting the Start-Up of Your Switch
278
Table 95 Troubleshooting Accessing the Switch
278
Pop-Up Windows, Javascripts and Java Permissions
279
Internet Explorer Pop-Up Blockers
279
Figure 190 Pop-Up Blocker
279
Figure 191 Internet Options
280
Figure 192 Internet Options
281
Javascripts
282
Figure 193 Pop-Up Blocker Settings
282
Figure 194 Internet Options
283
Java Permissions
284
Figure 195 Security Settings - Java Scripting
284
Figure 196 Security Settings - Java
285
Problems with the Password
286
Figure 197 Java (Sun)
286
Table 96 Troubleshooting the Password
286
Appendix A
288
Product Specifications
288
Table 97 General Product Specifications
288
Table 98 Management Specifications
289
Table 99 Physical and Environmental Specifications
290
Appendix Bip Subnetting
292
Table 100 Classes of IP Addresses
292
Table 101 Allowed IP Address Range by Class
293
Table 102 "Natural" Masks
293
Subnet Masks
293
Table 103 Alternative Subnet Mask Notation
294
Table 104 Two Subnets Example
294
Table 105 Subnet 1
295
Table 106 Subnet 2
295
Table 107 Subnet 1
296
Table 108 Subnet 2
296
Table 109 Subnet 3
296
Table 110 Subnet 4
297
Table 111 Eight Subnets
297
Table 112 Class C Subnet Planning
297
Example Eight Subnets
297
Table 113 Class B Subnet Planning
298
Subnetting with Class a and Class B Networks
298
Index
300
Figure 125 Diagnostic
301
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ZyXEL Communications GS-4012F Specifications
General
Brand
ZyXEL Communications
Model
GS-4012F
Category
Network Router
Language
English
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