Intel 550T manual IP Filtering features, You can create logical network groups VLANs by segmenting

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Advanced Configuration

In this chapter	In this chapter you will learn how to use Advanced Configuration ef-
	fectively. This chapter covers the Virtual LAN (VLAN), Routing and
	IP Filtering features.
	You can create logical network groups (VLANs) by segmenting the
	switch; for example, according to the subnetting scheme within your
	network. Each VLAN is an isolated group and the switch only for-
	wards traffic between members of the same group. Communication
	between groups can be implemented using routers.
	Routing can be implemented using an external router or the internal
	routing feature. The switch can run either stand-alone or distributed
	VLANs. For single switches using stand-alone VLANs, the local
	configuration (for example, ports) must be configured on each
	switch. This does not apply to a stack. For distributed VLANs, the
	global configuration of MAC and IP addresses is automatically dis-
	tributed. Local policies are distributed within a stack, regardless of
	the VLAN mode.
	IP Filtering enables selective filtering of data traffic. It is available
	when you are routing between nets or VLANs. It enables you to send
	data packets to specific workstations or user groups across the
	VLANs.

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