Use the following procedure to configure DHCP snooping on a VLAN through to enable or disable DHCP snooping and DHCP snooping with Option 82 for a VLAN.
Attention You must enable DHCP snooping separately for each Vlan ID. |
Attention If DHCP snooping is disabled on a VLAN, the switch forwards DHCP reply packets to all applicable ports, whether the port is trusted or untrusted. |
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Step | Action |
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1 |
From the Device Physical View, select a port. |
2 |
From the navigation tree, double-click Security. |
3 |
In the Security tree, double-click DHCP Snooping. |
4 |
In the work area, click the DHCP Snooping-VLAN tab. |
5 |
To select a VLAN to edit, click the VLAN ID. |
6 |
In the VLAN row, double-click the cell in the DhcpSnoopingEnabled column. |
7 |
Select a value from the list—true to enable DHCP snooping for the VLAN, or false to disable DHCP snooping for the VLAN. |
8 |
In the VLAN row, double-click the cell in the VlanOtion82Enabled column. |
9 |
Select a value from the list—true to enable DHCP snooping with Option 82 for the VLAN, or false to disable DHCP snooping with Option 82 for the VLAN. |
10 |
Click Apply. |
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