User Manual

M4300 Intelligent Edge Series Fully Managed Stackable Switches
Manage Routing User Manual333
This specifies the mode of sending ICMPv6 Destination Unreachables on this interface. If
you select Disable, then this interface does not send ICMPv6 destination unreachables.
By default IPv6 destination unreachables mode is enabled.
10. In the IPv6 Address/Prefix
Length field, enter a configured IPv6 address for the selected
interface.
The address must be entered in the format prefix/length.
11. From the EUI64 list, select to Enable or Disable the 64-bit extended unique identifier
(EUI-64).
For 6to4 tunnels, configure the IPv6 address with first 48-bits in the format
2002:tunnel-source-IPv4-address::/48.
12. Specify the desired Source Address for this tunnel.
This value must be entered in dotted-decimal notation.
13. Select the Source Interface for this tunnel.
The address associated with the selected interface is used as the source address.
14. Enter the Destination Address for this tunnel in dotted-decimal notation.
15. Click the Add button.
The tunnel is added.
16. Click the Apply button.
Your settings are saved.
The Interface Link Status field indicates whether the tunnel interface is up or down.
Manage VLANs
You can configure the switch software so that some ports support VLANs and other ports
support routing. You can also configure the software to allow traffic on a VLAN to be treated
as if the VLAN were a router port.
When a port is enabled for bridging (default) rather than routing, all normal bridge processing
is performed for an inbound packet, which is then associated with a VLAN. Its MAC
destination address (MAC DA) and VLAN ID are used to search the MAC address table. If
routing is enabled for the VLAN, and the MAC DA of an inbound unicast packet is that of the
internal bridge-router interface, the packet is routed.
An inbound multicast packet is
forwarded to all ports in the VLAN, plus the internal bridge-router interface, if it was received
on a routed VLAN.
Since a port can be configured to belong to more than one VLAN, VLAN routing might be
enabled for all of the VLANs on the port, or for a subset. VLAN routing can be used to allow
more than one physical port to reside on the same subnet. It could also be used when a
VLAN spans multiple physical networks, or when additional segmentation or security is
required.
This section shows how to configure the NETGEAR switch to support VLAN