DHCPv4 snooping commands clear dhcpv4-snooping binding clear dhcpv4-snooping statistics dhcpv4-snooping dhcpv4-snooping (in config-vlan context) dhcpv4-snooping allow-overwrite-binding dhcpv4-snooping authorized-server dhcpv4-snooping external-storage dhcpv4-snooping max-bindings dhcpv4-snooping option 82 dhcpv4-snooping trust dhcpv4-snooping verify mac show dhcpv4-snooping show dhcpv4-snooping binding show dhcpv4-snooping statistics