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Article #1871

RFC 951 and BOOTP (fwd)

#1871
From: Gary Kunis
Date: Wed, 06 Jan 1993 02:26
33 lines
1587 bytes
William,

By default, the Cisco router will not forward BOOTP requests
(UDP broadcats).  You must configure the Cisco router to forward
these UDP broadcasts.

This can be done by using the ip forward-protocol global con-
figuration command and an ip helper-address.  The ip forward-
protocol command allows you to specify protocols and ports to
be forwarded by the router.  The ip helper-address defines the
destination host to receive the UDP broadcasts.

An example:

ip forward-protocol udp
!
interface ethernet 0
ip address 131.12.1.1 255.255.255.0
ip helper-address 131.12.4.12
> 
> FC 951 states that routers can be configured to forward BOOTP
> requests. How does cisco handle such requests? Are the packets
> forwarded as-is or are they altered in some way? Does the 
> router need any specific parameters set or is it a default
> process in the router software itself? I'm trying to determine
> how interoperable cisco is with other router vendors.
> 
> W. Smith	 575-2363	wildbill@lobby.ti.com
> 

  -- Gary Kunis --
PS - this is found on pages 13-13 and 13-14 in volume II of the
Configuration Reference Manuals
Technical Details
Message-ID: <726295334.29506@news.Colorado.EDU>
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Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!spool.mu.edu!agate!boulder!recnews
From: Gary Kunis <gkunis@cisco.com>
Subject: RFC 951 and BOOTP (fwd)
Message-ID: <726295334.29506@news.Colorado.EDU>
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Date: 5 Jan 93 18:26:16 PST
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