Allied Telesis AT-WL2411 - Manual (Page 98)

Configuring the Spanning Tree
98
Inbound Frames
Only frame types that are enabled in the Tunnel Filters menu are
forwarded, and the frames are only forwarded inbound if the source IP
address belongs to the home IP subnet. Frames transmitted by servers
or devices that are wired to a remote IP subnet are not forwarded
through IP tunnels if the IP address does not belong to the home subnet.
Only frames from wireless end devices with IP addresses belonging to
the home subnet are forwarded inbound.
Configuring IP
Tunnels
In general, here are some guidelines you can use to configure IP tunnels:
❑ When choosing the home IP subnet, ideally you should choose
the subnet that contains gateways or servers for end devices;
however, these servers may be on other subnet. Note that you can
create a home subnet for end devices. Fixed or variable length
subnet masks can be used; subnet addressing is not required. IP
addresses for end devices must belong to the home subnet.
❑ Identify the root candidates on the home subnet. The root access
point should be an access point that does not otherwise handle a
large volume of traffic.
❑ Configure all access points on the home subnet and remote IP
subnets with the same LAN ID. If IP tunnels are not used to attach
a remote subnet, then access points on that subnet should be
configured with a different LAN ID.
❑ In the IP Tunnels screen, enable the Port Control parameter in all
access points that are root candidates and designated bridge
candidates.
❑ In the IP Tunnels screen, configure the Mode parameter in root
candidates to Originate if Root. Configure the Ethernet Address
table to include access points on each remote subnet. All root
candidates should be configured identically.
❑ In the IP Tunnels screen, configure the Mode parameter in
designated bridge candidates to Listen.