Chapter 27 DHCP
GS-2724 User’s Guide
181
27.4 DHCP Relay
Configure DHCP relay on the Switch if the DHCP clients and the DHCP server are not in the
same subnet. During the initial IP address leasing, the Switch helps to relay network
information (such as the IP address and subnet mask) between a DHCP client and a DHCP
server. Once the DHCP client obtains an IP address and can connect to the network, network
information renewal is done between the DHCP client and the DHCP server without the help
of the Switch.
27.4.1 DHCP Relay Agent Information
The Switch can add information to client DHCP requests that it relays to a DHCP server. This
helps provide authentication about the source of the requests. You can also specify additional
information for the Switch to add to the client DHCP requests that it relays to the DHCP
server. Please refer to RFC 3046 for more details.
The DHCP relay agent information feature adds an Agent Information field to the option 82
field of the DHCP headers of client DHCP request frames that the Switch relays to a DHCP
server. The following lists the DHCP relay agent option 82 information that the Switch sends
to the DHCP server:
• Slot ID (1 byte)
• Port ID (1 byte)
• VLAN ID (2 bytes)
• System name (up to 32 bytes, this is optional)
27.4.2 Configuring DHCP Relay
Configure DHCP relay in the
DHCP Relay
screen. Click
IP Application
>
DHCP
>
Relay
to
display the screen as shown.
Figure 87
DHCP Relay
Содержание GS-2724
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Страница 36: ...Chapter 1 Getting to Know Your Switch GS 2724 User s Guide 36 ...
Страница 40: ...Chapter 2 Hardware Installation and Connection GS 2724 User s Guide 40 ...
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Страница 94: ...Chapter 8 VLAN GS 2724 User s Guide 94 Figure 36 Port Based VLAN Setup All connected ...
Страница 126: ...Chapter 16 Port Authentication GS 2724 User s Guide 126 ...
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Страница 136: ...Chapter 18 Classifier GS 2724 User s Guide 136 Figure 58 Classifier Example ...
Страница 139: ...Chapter 19 Policy Rule GS 2724 User s Guide 139 Figure 59 Policy ...
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Страница 152: ...Chapter 21 VLAN Stacking GS 2724 User s Guide 152 ...
Страница 165: ...165 PART IV IP Application Static Route 167 RIP 169 IGMP 171 Differentiated Services 173 DHCP 177 ...
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Страница 183: ...Chapter 27 DHCP GS 2724 User s Guide 183 Figure 89 DHCP Relay Configuration Example ...
Страница 184: ...Chapter 27 DHCP GS 2724 User s Guide 184 ...
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Страница 224: ...Chapter 36 Routing Table GS 2724 User s Guide 224 ...
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Страница 262: ...Chapter 38 Introducing Commands GS 2724 User s Guide 262 ...
Страница 296: ...Chapter 42 IEEE 802 1Q Tagged VLAN Commands GS 2724 User s Guide 296 ...
Страница 300: ...Chapter 44 Routing Domain Command Examples GS 2724 User s Guide 300 ...
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Страница 312: ...Appendix B Changing a Fuse GS 2724 User s Guide 312 ...
Страница 332: ...Appendix E Common Services GS 2724 User s Guide 332 ...
Страница 336: ...Appendix F Legal Information GS 2724 User s Guide 336 ...
Страница 348: ...Index GS 2724 User s Guide 348 ...