Allied Telesis AT-WA7501, AT-WA7500 manual Frame Types That Are Never Forwarded

AT-WA7500 and AT-WA7501 Installation and User’s Guide

Frame Types That Are Never Forwarded

Certain frame types are never forwarded through IP tunnels. Frame types that are never forwarded include IP frames used for coordinating routers and MAC frames used for coordinating bridges. Other frame types that are never forwarded include:

ˆ802.1d bridge frames

ˆProprietary VLAN switch frames

ˆIP frames with a broadcast or multicast Ethernet address

ˆIP frames with the following router protocol types and decimal values:

ˆDGP (86) (Dissimilar Gateway Protocol)

ˆEGP (8) (Exterior Gateway Protocol)

ˆIDPR (35) (Inter-Domain Policy Routing Protocol)

ˆIDRP (45) (Inter-Domain Routing Protocol)

ˆIGP (9) (Interior Gateway Protocol)

ˆIGRP (88)

ˆMHRP (48) (Mobile Host Routing Protocol)

ˆOSPFIGP (89) (Open Shortest Path First Interior Gateway Protocol)

ˆIP ICMP (Internet Control Message Protocol) types:

ˆIPv6

ˆMobile IP

ˆRouter Advertisement

ˆRouter Selection

ˆIP/UDP (User Datagram Protocol) frames with the following destination protocol port numbers:

ˆBGP (179) (Border Gateway Protocol)

ˆRAP (38) (Route Access Protocol)

ˆRIP (520) (Routing Information Protocol)

ˆIP/TCP frames with the following destination or source protocol port numbers:

ˆBGP (179) (Border Gateway Protocol)

ˆRAP (38) (Route Access Protocol)

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