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In non-source route environments, RIF stripping may be required if DHCP clients are token
ring stations. Token ring stations may have packets with RIFs even though source routing is
not enabled on the station. RIF stripping is required if there is bridging to Ethernet, FDDI, or
802.3 LANE anywhere along the path between the client and the DHCP server. RIF stripping
should be enabled on the first non-token ring port in the path. The number of bridges on the
path does not matter.

UDP Relay Hardware/Software Support

The UDP forwarding feature has the following hardware/software support:
•UDP relay is supported on any Omni Switch/Router (OmniS/R).
• To relay DHCP requests from authentication clients in a default group to a DHCP server in
an authenticated group, the avlbootpmode command must be used in addition to the relayc
command described in this chapter. See the Authentication Services chapter of the
Switched Network Solutions User Manual for information about the avlbootpmode command.