A10E/A28E/A28F Configuration Guide
3.2 Layer 3 interface ......................................................................................................................... 76
3.2.1 Introduction .................................................................................................................................... 76
3.2.2 Preparing for configurations ........................................................................................................... 76
3.2.3 Configuring the Layer 3 interface .................................................................................................... 76
3.2.4 Checking configurations .................................................................................................................. 77
3.2.5 Example for configuring Layer 3 interface to interconnect with host ............................................. 77
3.3 Default gateway .......................................................................................................................... 79
3.3.1 Introduction .................................................................................................................................... 79
3.3.2 Preparing for configurations ........................................................................................................... 79
3.3.3 Configuring the default gateway ..................................................................................................... 79
3.3.4 Configuring static route ................................................................................................................... 80
3.3.5 Checking configurations .................................................................................................................. 80
3.4 DHCP Client ................................................................................................................................ 80
3.4.1 Introduction .................................................................................................................................... 80
3.4.2 Preparing for configurations ........................................................................................................... 83
3.4.3 Default configurations of DHCP client ............................................................................................. 83
3.4.4 Applying the IP address through DHCP ........................................................................................... 83
3.4.5 (Optional) configuring DHCP client ................................................................................................. 84
3.4.6 (Optional) Renewing or releasing the IP address ............................................................................ 84
3.4.7 Checking configurations .................................................................................................................. 85
3.4.8 Configuring DHCP clients application .............................................................................................. 85
3.5 DHCP Relay ................................................................................................................................. 86
3.5.1 Introduction .................................................................................................................................... 86
3.5.2 Preparing for configurations ........................................................................................................... 87
3.5.3 Default configurations of DHCP Relay ............................................................................................. 87
3.5.4 Configuring global DHCP Relay ....................................................................................................... 87
3.5.5 Configuring interface DHCP Relay ................................................................................................... 87
3.5.6 Configuring the destination IP address for forwarding packets ...................................................... 88
3.5.7 (Optional) configuring DHCP Relay to support Option 82 .............................................................. 88
3.5.8 Checking configurations .................................................................................................................. 88
3.6 DHCP Snooping ........................................................................................................................... 89
3.6.1 Introduction .................................................................................................................................... 89
3.6.2 Preparing for configurations ........................................................................................................... 90
3.6.3 Default configurations of DHCP Snooping ...................................................................................... 90
3.6.4 Configuring DHCP Snooping ............................................................................................................ 90
3.6.5 Checking configurations .................................................................................................................. 91
3.6.6 Example for configuring DHCP Snooping ........................................................................................ 91
3.7 DHCP options .............................................................................................................................. 93
3.7.1 Introduction .................................................................................................................................... 93
3.7.2 Preparing for configurations ........................................................................................................... 94
3.7.3 Default configurations of DHCP Option .......................................................................................... 94
3.7.4 Configuring DHCP Option field ........................................................................................................ 95
3.7.5 Checking configurations .................................................................................................................. 95
4 QoS ....................................................................................................................................... 96
4.1 Introduction ................................................................................................................................ 96
4.1.1 Service model .................................................................................................................................. 96
4.1.2 Priority trust .................................................................................................................................... 97
4.1.3 Traffic classification ......................................................................................................................... 97
4.1.4 Traffic policy .................................................................................................................................... 99
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