Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!excelan!avnish
From: avnish@ka.excelan.com (Avnish Aggarwal)
Newsgroups: comp.protocols.tcp-ip
Subject: broadcast handling in presence of subnets
Keywords: subnets broadcast
Message-ID: <794@excelan.COM>
Date: 30 Nov 89 01:14:56 GMT
Sender: news@excelan.COM
Organization: Novell, San Jose CA.
Lines: 21


If you have an IP router that is connected to subnets (which
are all part of the same IP network), what is the router
supposed to do with an directed IP broadcast datagram?
(i.e. destination address is <net><-1>  where <net> is same
as the local net)

I had thought that the IP router would forward such
a datagram to all connected subnets. The SUN IP router does not do this.
I do not know what other routers do.

RFC 922 says that this should be possible (Section 6.2).
RFC 985 is not much help.

Any opinions?

Avnish Aggarwal
avnish@excelan.com

UUCP: {ames,sun,apple,mtxinu,cae780,sco}!excelan!avnish    Avnish Aggarwal
Internet: avnish@excelan.com 


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