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NETGEAR 7000 Series Managed Switch Administration Guide Version 7.2
18-4 Simple Network Time Protocol (SNTP)
v1.0, May 2008
Example #5: Setting Time Zone
The SNTP/NTP server is set to Coordinated Universal Time (UTC) by default. The
following example shows how to set the time zone to Pacific Standard Time (PST) which
is 8 hours behind GMT/UTC.
Example #6: Setting Named SNTP Server
Netgear provides SNTP servers accessible by Netgear devices.
Because Netgear may change IP addresses assigned to its time servers, it is best to access a SNTP
server by DNS name instead of using a hard-coded IP address. The public time servers available
are time-a, time-b, and time-c.
To use this feature, follow the steps below:
Enable a DNS name server and access a time server with the following commands:
where “192.168.1.1” is the public network gateway IP address for your device.
This method of setting DNS name look-up can be used for any other applications that require a
public IP address, for example, a RADIUS server.
(Netgear switch)(config)#clock timezone PST -8
(Netgear switch) (config)#ip domain-lookup
(Netgear switch) (config)#ip name-server 192.168.1.1
(Netgear switch) (config)#sntp server time-a.netgear.com
- NETGEAR 7000 Series 1
- Managed Switch 1
- Administration Guide 1
- Version 7.2 1
- Declaration Of Conformity 2
- 7000 Series Managed Switch 3
- Contents 5
- About This Manual 15
- How to Use This Manual 16
- How to Print this Manual 16
- Revision History 17
- Chapter 1 19
- Introduction 19
- Audience 20
- CLI Documentation 21
- Related Documentation 21
- 1-4 Introduction 22
- Chapter 2 23
- Getting Started 23
- 2-6 Getting Started 24
- Getting Started 2-7 25
- Starting the Switch 26
- Initial Configuration 26
- Getting Started 2-9 27
- Software Installation 28
- Chapter 3 33
- Changing the Password 34
- Saving the Configuration 35
- Chapter 4 37
- Using the Web Interface 37
- Starting the Web Interface 38
- Using the Web Interface 4-3 39
- Figure 4-1 39
- Figure 4-2 39
- 4-4 Using the Web Interface 40
- Figure 4-3 40
- Using the Web Interface 4-5 41
- 4-6 Using the Web Interface 42
- Chapter 5 43
- Virtual LANs 43
- VLAN Configuration Example 44
- Virtual LANs 5-3 45
- Graphical User Interface 46
- Chapter 6 Link Aggregation 47
- Example #1: Create two LAGS 48
- Example #3: Enable both LAGs 49
- 6-4 Link Aggregation 50
- Chapter 7 51
- IP Routing Services 51
- Port Routing Configuration 52
- VLAN Routing 54
- VLAN Routing Configuration 55
- 7-6 IP Routing Services 56
- IP Routing Services 7-7 57
- IP Routing Services 7-9 59
- 7-10 IP Routing Services 60
- IP Routing Services 7-11 61
- Routing Information Protocol 62
- 7-14 IP Routing Services 64
- IP Routing Services 7-15 65
- IP Routing Services 7-17 67
- Figure 7-5 67
- 7-18 IP Routing Services 68
- IP Routing Services 7-19 69
- Figure 7-6 69
- 7-20 IP Routing Services 70
- Overview 71
- Chapter 8 73
- Chapter 9 77
- Access Control Lists (ACLs) 77
- Configuring IP ACLs 78
- IP ACL Examples 79
- Figure 9-2 80
- Figure 9-3 84
- Figure 9-4 85
- Figure 9-5 86
- Figure 9-6 87
- Figure 9-7 87
- Figure 9-8 88
- Figure 9-9 89
- Figure 9-10 89
- Figure 9-11 90
- Figure 9-12 90
- Figure 9-13 91
- Figure 9-14 92
- Figure 9-15 93
- Figure 9-16 94
- Figure 9-17 95
- Figure 9-18 96
- Figure 9-19 97
- Figure 9-20 98
- Using ACLs 99
- CLI Commands 100
- Figure 9-23 102
- Figure 9-24 103
- Figure 9-25 104
- Figure 9-27 105
- Figure 9-26 105
- Figure 9-28 106
- Figure 9-29 106
- Figure 9-30 107
- Figure 9-31 107
- Figure 9-32 108
- Figure 9-33 109
- Figure 9-34 110
- Figure 9-35 110
- Figure 9-36 111
- Figure 9-37 112
- Figure 9-38 113
- MAC ACL CLI Examples 114
- Example #2: permit any 115
- Example #4 permit 117
- Chapter 10 119
- CoS Queue Configuration 120
- CLI Examples 121
- Scheduler Mode 123
- Traffic Shaping 124
- Example #1 traffic-shape 125
- Chapter 11 127
- Differentiated Services 127
- CLI Example 128
- Differentiated Services 11-3 129
- 11-4 Differentiated Services 130
- Differentiated Services 11-5 131
- Figure 11-2 131
- 11-6 Differentiated Services 132
- Chapter 12 133
- IGMP Snooping 133
- Example #2: show igmpsnooping 134
- Chapter 13 135
- Port Security 135
- Operation 136
- 13-4 Port Security 138
- Chapter 14 139
- Traceroute 139
- Chapter 15 141
- Configuration Scripting 141
- Example #1: script 142
- Configuration Scripting 15-3 143
- 15-4 Configuration Scripting 144
- Chapter 16 145
- Outbound Telnet 145
- Example #1: show network 146
- Example #2: show telnet 146
- Outbound Telnet 16-3 147
- 16-4 Outbound Telnet 148
- Chapter 17 Port Mirroring 149
- Example #2: show port all 150
- Port Mirroring 17-3 151
- 17-4 Port Mirroring 152
- Chapter 18 153
- Example #2: show sntp client 154
- Example #3: show sntp server 154
- Example #4: Configure SNTP 154
- Example #5: Setting Time Zone 156
- Chapter 19 157
- Example #1: show logging 159
- 19-4 Syslog 160
- Syslog 19-5 161
- 19-6 Syslog 162
- Chapter 20 163
- Managing Switch Stacks 163
- Understanding Switch Stacks 164
- Switch Stack Membership 165
- 20-4 Managing Switch Stacks 166
- Figure 20-1 166
- Figure 20-2 166
- Stack Member Numbers 167
- Stack Member Priority Values 168
- Managing Switch Stacks 20-7 169
- 20-8 Managing Switch Stacks 170
- Managing Switch Stacks 20-9 171
- 20-10 Managing Switch Stacks 172
- Stacking Recommendations 173
- 20-12 Managing Switch Stacks 174
- Managing Switch Stacks 20-13 175
- Renumbering Stack Members 176
- Preconfiguration 177
- Upgrading Firmware 177
- 20-16 Managing Switch Stacks 178
- Code Mismatch 179
- 20-18 Managing Switch Stacks 180
- Pre-Login Banner 181
- Chapter 21 181
- 21-2 Pre-Login Banner 182
- Chapter 22 183
- IGMP Querier 183
- Chapter 23 185
- 23-2 DNS 186
- Figure 23-1 186
- DNS 23-3 187
- Figure 23-2 187
- 3. Click Add 188
- Chapter 24 189
- DHCP Server 189
- 24-2 DHCP Server 190
- Figure 24-1 190
- DHCP Server 24-3 191
- Figure 24-2 191
- 24-4 DHCP Server 192
- DHCP Server 24-5 193
- Figure 24-3 193
- 24-6 DHCP Server 194
- Figure 24-4 194
- Chapter 25 195
- Protected Ports 195
- Protected Ports 25-3 197
- 25-4 Protected Ports 198
- Figure 25-2 198
- Protected Ports 25-5 199
- Figure 25-3 199
- 25-6 Protected Ports 200
- Figure 25-4 200
- Protected Ports 25-7 201
- Figure 0-1 201
- Figure 25-5 201
- 25-8 Protected Ports 202
- Figure 25-6 202
- Chapter 26 203
- 802.1x Port Security 203
- 802.1x Port Security 26-3 205
- Figure 26-2 205
- 26-4 802.1x Port Security 206
- 802.1x Port Security 26-5 207
- Figure 26-3 207
- Figure 26-4 207
- 26-6 802.1x Port Security 208
- Figure 26-5 208
- Figure 26-6 208
- 802.1x Port Security 26-7 209
- 26-8 802.1x Port Security 210
- Chapter 27 211
- Double VLANs 211
- Double VLANs 27-3 213
- Figure 27-2 213
- 27-4 Double VLANs 214
- Figure 27-3 214
- Double VLANs 27-5 215
- Figure 27-4 215
- 27-6 Double VLANs 216
- Figure 27-5 216
- Numerics 217
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