Use the following procedure to configure DHCP snooping globally on the switch.
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Step | Action |
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1 |
From the navigation tree, double-click Security. |
2 |
In the Security tree, double-click DHCP Snooping. |
3 |
In the work area, click the DHCP Snooping Globals tab. |
4 |
To enable DHCP snooping globally, click the DhcpSnoopingEnabled box. |
5 |
To enable Option 82 for DHCP snooping, click the DhcpSnoopingOption82Enabled box. |
6 |
On the toolbar, click Apply. |
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--End-- | |
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Warning You must enable DHCP snooping on Layer 3 VLANs spanning toward DHCP servers in Layer 3 mode. DHCP relay is also required for correct operation. |
The following table describes the fields of DHCP Snooping Globals tab.
Variable | Value |
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DhcpSnoopingEnabled | Enables or disables DHCP Snooping globally. |
DhcpSnoopingOption82Enabled |
Enables or disables DHCP Snooping option 82 globally. |