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Chapter 26 IP Source Guard
GS2200-24 User’s Guide
237
read. If the calculated checksum is not equal to the checksum in the file, that
binding and all others after it are ignored.
26.12.1.3 DHCP Relay Option 82 Information
The Switch can add information to DHCP requests that it does not discard. This
provides the DHCP server more information about the source of the requests. The
Switch can add the following information:
• Slot ID (1 byte), port ID (1 byte), and source VLAN ID (2 bytes)
• System name (up to 32 bytes)
This information is stored in an Agent Information field in the option 82 field of the
DHCP headers of client DHCP request frames. See
for
more information about DHCP relay option 82.
When the DHCP server responds, the Switch removes the information in the Agent
Information field before forwarding the response to the original source.
You can configure this setting for each source VLAN. This setting is independent of
the DHCP relay settings (
26.12.1.4 Configuring DHCP Snooping
Follow these steps to configure DHCP snooping on the Switch.
1
Enable DHCP snooping on the Switch.
2
Enable DHCP snooping on each VLAN, and configure DHCP relay option 82.
3
Configure trusted and untrusted ports, and specify the maximum number of DHCP
packets that each port can receive per second.
4
Configure static bindings.
Содержание GS2200-24 Series
Страница 2: ......
Страница 8: ...Safety Warnings GS2200 24 User s Guide 8 ...
Страница 22: ...Table of Contents GS2200 24 User s Guide 22 ...
Страница 24: ...24 ...
Страница 30: ...Chapter 1 Getting to Know Your Switch GS2200 24 User s Guide 30 ...
Страница 34: ...Chapter 2 Hardware Installation and Connection GS2200 24 User s Guide 34 ...
Страница 42: ...42 ...
Страница 70: ...Chapter 7 System Status and Port Statistics GS2200 24 User s Guide 70 ...
Страница 84: ...Chapter 8 Basic Setting GS2200 24 User s Guide 84 ...
Страница 86: ...86 ...
Страница 104: ...Chapter 9 VLAN GS2200 24 User s Guide 104 Figure 51 Port Based VLAN Setup Port Isolation ...
Страница 110: ...Chapter 10 Static MAC Forward Setup GS2200 24 User s Guide 110 ...
Страница 138: ...Chapter 13 Spanning Tree Protocol GS2200 24 User s Guide 138 ...
Страница 142: ...Chapter 14 Bandwidth Control GS2200 24 User s Guide 142 ...
Страница 146: ...Chapter 15 Broadcast Storm Control GS2200 24 User s Guide 146 ...
Страница 150: ...Chapter 16 Mirroring GS2200 24 User s Guide 150 ...
Страница 160: ...Chapter 17 Link Aggregation GS2200 24 User s Guide 160 ...
Страница 168: ...Chapter 19 Port Security GS2200 24 User s Guide 168 ...
Страница 180: ...Chapter 21 Policy Rule GS2200 24 User s Guide 180 ...
Страница 192: ...Chapter 23 VLAN Stacking GS2200 24 User s Guide 192 ...
Страница 214: ...Chapter 25 AAA GS2200 24 User s Guide 214 ...
Страница 240: ...Chapter 26 IP Source Guard GS2200 24 User s Guide 240 ...
Страница 250: ...Chapter 28 Layer 2 Protocol Tunneling GS2200 24 User s Guide 250 ...
Страница 251: ...251 PART IV IP Application Static Route 253 Differentiated Services 257 DHCP 261 ...
Страница 252: ...252 ...
Страница 256: ...Chapter 29 Static Route GS2200 24 User s Guide 256 ...
Страница 270: ...270 ...
Страница 300: ...Chapter 33 Access Control GS2200 24 User s Guide 300 ...
Страница 306: ...Chapter 35 Syslog GS2200 24 User s Guide 306 ...
Страница 314: ...Chapter 36 Cluster Management GS2200 24 User s Guide 314 ...
Страница 318: ...Chapter 37 MAC Table GS2200 24 User s Guide 318 ...
Страница 323: ...323 PART VI Troubleshooting Product Specifications Troubleshooting 325 Product Specifications 329 ...
Страница 324: ...324 ...
Страница 336: ...Chapter 41 Product Specifications GS2200 24 User s Guide 336 ...
Страница 337: ...337 PART VII Appendices and Index Changing a Fuse 339 Common Services 341 Legal Information 345 Index 349 ...
Страница 338: ...338 ...
Страница 340: ...Appendix A Changing a Fuse GS2200 24 User s Guide 340 ...
Страница 348: ...Appendix C Legal Information GS2200 24 User s Guide 348 ...
Страница 358: ...Index GS2200 24 User s Guide 358 ...