Udp Relay And Rif Stripping; Udp Forwarding - Alcatel Omni Switch/Router User Manual

is a connectionless transport protocol that is used for applications that do not require the
UDP
establishment of a session and end-to-end error checking, such as email and file transfer. This
chapter describes the
to be forwarded across groups and
you to use nonroutable protocols in a routing environment. (For information about IP rout-
ing, see Chapter 25, "IP Routing.")
The relay may be configured for the following services:
• Bootstrap Protocol (
• Name Server (
NetBIOS
• Datagram Distribution Server (
NetBIOS
• Generic applications, such as Trivial File Transfer Protocol (
The services, their corresponding well-known port numbers, and configurable options
UDP
on the switch are listed here.
Service
BOOTP/DHCP
NBNS
NBDD
Generic

UDP Relay and RIF Stripping

Routing Information Field (
route environments and may also be useful in non-source route environments.
In a source route environment, where
Ethernet, relay clients should not be more than one switch away from the
UDP
(In stripping, 2 bytes are stripped from the
RIF
Packets with a
RIF

26 UDP Forwarding

relay function in the switch, which allows
UDP
VLAN
o Note o
/ relay has previously been available on
BOOTP DHCP
the switch. It is now part of an expanded feature that
includes relays for
NetBIOS
)/Dynamic Host Configuration Protocol (
BOOTP
)
NBNS
UDP Port No.
67/68
137
138
user-configured
stripping is required for transparent bridge ports in source
RIF)
RIF
greater than 2 bytes are discarded.)
s that have IP routing enabled. The
and generic services.
)
NBDD
Configurable Options
Next-hop address (up to 8)
Forward delay
Maximum hops
Next-hop address (up to 8)
Forwarding VLANs (up to 32)
Next-hop address (up to 8)
Forwarding VLANs (up to 32)
Next-hop address (up to 8)
Forwarding VLANs (up to 32)
stripping is enabled for transparent bridging to
and each bridge adds 2 bytes to the
RIF
broadcast packets
UDP
relay allows
UDP
)
DHCP
)
TFTP
DHCP
server.
.
RIF
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