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1.9.1 Change the default administrator password ............................ 45
1.9.2 Test the Result ................................................................................. 46
1.10 How to configure a whitelist for remote management to prevent
unauthorized access ................................................................................... 47
1.10.1 Configure the whitelist of the remote management ............. 48
1.10.2 Test the Result ............................................................................... 49
1.10.3 What could go wrong? ............................................................... 50
1.11 How to configure DHCP auto-configuration ..................................... 51
1.11.1 DHCP auto-configuration flow .................................................. 53
1.11.2 Configure DHCP auto-configuration ........................................ 53
1.11.3 Test the Result ............................................................................... 60
1.11.4 What Could Go Wrong ............................................................... 64
Designing the Local Area Network ............................................................ 65
2.1 How to configure the switch to separate traffic between departments
using VLAN ................................................................................................... 65
2.1.1 Configure Switch-1 ........................................................................ 66
2.1.2 Configure Switch-2 ........................................................................ 69
2.1.3 Test the Result ................................................................................. 71
2.2 How to configure the switch to route traffic across VLANs ................ 72
2.2.1 Configure VLAN 10 ........................................................................ 73
2.2.2 Configure VLAN 20 ........................................................................ 75
2.2.3 Set the gateway on PC-1 and PC-2 ........................................... 77
2.2.4 Test the Result ................................................................................. 79
2.2.5 What could go wrong ................................................................... 80
2.3 How to configure the switch to perform DHCP service in a VLAN .... 81
2.3.1 Configure VLAN 10 ........................................................................ 82
2.3.2 Configure VLAN 20 ........................................................................ 84
2.3.3 Configure the Switch and PC ...................................................... 86
2.3.4 Test the Result ................................................................................. 89
2.3.5 What Could Go Wrong ................................................................. 90
Improving Network Reliability .................................................................... 91
3.1 How to configure a stacked switch to ensure high server availability
....................................................................................................................... 91
3.1.1 Configure Switch-1 and Switch-2 for Stacking .......................... 92
3.1.2 Configure Link Aggregation on Stacked switch ....................... 94
3.1.3 Configure Link Aggregation on Switch-3 ................................... 95