# Configuring DHCP snooping port trust using EDM

Use the following procedure to specify whether a particular port or multiple ports are trusted or untrusted. Ports are untrusted by default.

## Procedure steps

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-port tab.

4. In the Make Selection section, click the Switch/Stack/Ports ellipsis.

5. Click a port, a range of ports, or All.

6. Click Ok.

7. In the Make Selection section, double-click in the cell under DhcpSnoopingIfTrusted.

8. Click a value in theDhcpSnoopingIfTrusted list—trusted or untrusted.

9. In the Make Selection section, double-click in the cell under DhcpSnoopingIfTrusted.

10. In the DhcpSnoopingIfOption82SubscriberId cell, type a subscriber Id value for the port.

11. Click Apply Selection.

12. On the toolbar, click Apply.

## Variable definitions

Variable | Value
--- | ---
Port | Indicates the port on the switch.
DhcpSnoopingIfTrusted | Indicates whether the port is trusted or untrusted. Default is false.
DhcpSnoopingIfOption82SubscriberId | Indicates the DHCP option 82 subscriber ID. Value is a character string between 0 and 64 characters.