NETGEAR M4350-24F4V 24-Port 10G SFP+ Managed AV Network Switch - Manual (Page 912)

3. On the Port PVID Configuration page (see Change the port VLAN ID settings on
page 241), specify the PVID for ports g1 and g4 so that packets entering these ports
are tagged with the port VLAN ID:
• Port 1: PVID 10
• Port 4: PVID 20
4. With the VLAN configuration that you set up, the following situations produce results
as described:
• If an untagged packet enters port 1, the switch tags it with VLAN ID 10. The packet
can access port 2 and port 3. The outgoing packet is stripped of its tag to leave
port 2 as an untagged packet. For port 3, the outgoing packet leaves as a tagged
packet with VLAN ID 10.
• If a tagged packet with VLAN ID 10 enters port 3, the packet can access port 1
and port 2. If the packet leaves port 1 or port 2, it is stripped of its tag to leave
the switch as an untagged packet.
• If an untagged packet enters port 4, the switch tags it with VLAN ID 20. The packet
can access port 5 and port 6. The outgoing packet is stripped of its tag to become
an untagged packet as it leaves port 6. For port 5, the outgoing packet leaves as
a tagged packet with VLAN ID 20.
Access control lists (ACLs)
ACLs ensure that only authorized users can access specific resources while blocking off
any unwarranted attempts to reach network resources.
ACLs are used to provide traffic flow control, restrict contents of routing updates, decide
which types of traffic are forwarded or blocked, and provide security for the network.
ACLs are normally used in firewall routers that are positioned between the internal
network and an external network, such as the Internet. They can also be used on a router
positioned between two parts of the network to control the traffic entering or exiting a
specific part of the internal network. The added packet processing required by the ACL
feature does not affect switch performance. That is, ACL processing occurs at wire
speed.
Access lists are a sequential collection of permit and deny conditions. This collection
of conditions, known as the filtering criteria, is applied to each packet that is processed
by the switch or the router. The forwarding or dropping of a packet is based on whether
or not the packet matches the specified criteria.
Traffic filtering requires the following two basic steps:
1. Create an access list definition.
Main User Manual 912 Configuration Examples
Fully Managed Switches M4350 Series Main User Manual