Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 985)

Brocade 6910 Ethernet Access Switch Configuration Guide 929
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DHCP Snooping
DHCP Snooping VLAN Configuration
Use the IP Service > DHCP > Snooping (Configure VLAN) page to enable or disable DHCP snooping
on specific VLANs.
CLI References
• “ip dhcp snooping vlan” on page 216
Command Usage
• When DHCP snooping is enabled globally on the switch, and enabled on the specified VLAN,
DHCP packet filtering will be performed on any untrusted ports within the VLAN.
• When the DHCP snooping is globally disabled, DHCP snooping can still be configured for
specific VLANs, but the changes will not take effect until DHCP snooping is globally re-enabled.
• When DHCP snooping is globally enabled, and DHCP snooping is then disabled on a VLAN, all
dynamic bindings learned for this VLAN are removed from the binding table.
Parameters
These parameters are displayed:
• VLAN – ID of a configured VLAN. (Range: 1-4093)
• DHCP Snooping Status – Enables or disables DHCP snooping for the selected VLAN. When
DHCP snooping is enabled globally on the switch, and enabled on the specified VLAN, DHCP
packet filtering will be performed on any untrusted ports within the VLAN. (Default: Disabled)
Interface
To configure global settings for DHCP Snooping:
1. Click IP Service, DHCP, Snooping.
2. Select Configure VLAN from the Step list.
3. Enable DHCP Snooping on any existing VLAN.
4. Click Apply
FIGURE 237 Configuring DHCP Snooping on a VLAN