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Allied Telesis AT-WL2411 User Manual

Page 97

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AT-WL2411 Version 1.80 Installation and User’s Guide

97

— IGRP (88)

— MHRP (48) (Mobile Host Routing Protocol)

— OSPFIGP (89) (Open Shortest Path First Interior Gateway

Protocol)

❑ IP ICMP (Internet Control Message Protocol) types:

— IPv6

— Mobile IP

— Router Advertisement

— Router Selection

❑ IP/UDP (User Datagram Protocol) frames with the following

destination protocol port numbers:

— BGP (179) (Border Gateway Protocol)

— RAP (38) (Route Access Protocol)

— RIP (520) (Routing Information Protocol)

❑ IP/TCP frames with the following destination or source protocol

port numbers:

— BGP (179) (Border Gateway Protocol)

— RAP (38) (Route Access Protocol)

Outbound Frames

Data frames are forwarded outbound through an IP tunnel if

❑ an end device is known to be attached to an access point on a

remote IP subnet.

❑ the frame type is enabled in the Tunnel Filters menu.

Unicast frames are not flooded. End devices attach to the root access
point, which maintains entries for these devices in its forwarding
database. The database entries indicate the correct subnet for outbound
forwarding.

For TCP/IP applications, IP and ARP frames must be forwarded through
IP tunnels. An IP or ARP frame is only forwarded outbound if the
destination address identifies an end device on the home IP subnet. If
you enable the ARP server in the root access point, you can reduce the
number of ARPs forwarded outbound.