Allied-telesis AT-WL2411 Manual de usuario descargar pdf (Pagina 103)

AT-WL2411 Version 1.80 Installation and User’s Guide

103

Using IP Tunnel

Frame Type

Filters

The IP port automatically provides some filtering for end devices. You

can define permanent IP port filters to prevent unwanted frame

forwarding through an IP tunnel. IP ICMP packets with the following

types are forwarded:

❑ Echo Request

❑ Echo Reply

❑ Destination Unreachable

❑ Source Quench

❑ Redirect

❑ Alternate Host Address

❑ Time Exceeded

❑ Parameter Problem

❑ Time Stamp

❑ Time Stamp Reply

❑ Address Mask Request

❑ Address Mask Reply

❑ Trace Route

IP and ARP frames are never forwarded inbound through an IP tunnel to

the home subnet unless the source IP address belongs to the home

subnet. (Frames are only forwarded inbound if the source IP address in

the IP or ARP packet identifies an end device that has roamed away from

its home subnet.) IP and ARP frames are never forwarded outbound

through an IP tunnel by the root access point unless the destination IP

address belongs to the home subnet. (Frames are only forwarded

outbound to end devices that have roamed away from the home

subnet.) For detailed information about other frame types that are never

forwarded, see the list of frame types that are never forwarded in Frame

Forwarding on page 96.

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Allied-telesis AT-WL2411 Manual de usuario Pagina 103