Some help with broadcasts through a Linux system

Dan Kaminsky effugas at
Wed Feb 3 19:27:01 GMT 1999

----- Original Message -----
From: Luke Kenneth Casson Leighton <lkcl at>
To: Dan Kaminsky <effugas at>
Cc: Multiple recipients of list <samba-technical at>
Sent: Wednesday, February 03, 1999 11:06 AM
Subject: Re: Some help with broadcasts through a Linux system

>On Wed, 3 Feb 1999, Dan Kaminsky wrote:
>> >i would discourage anyone from doing this.  use a WINS server instad.
>> Uhm, sorry, we don't always have power to control everybody else on the
>> network.  Sometimes it's a power thing, or a legacy thing, or whatnot,
>> sometimes we can't force everybody else to use us for WINS services.
>then you fall into  the category where "remote announce" is appropriate
>for you.  remember that everyone on the remote subnet will *still* have to
>resolve the netbios name of the samba server somehow, and that *still*
>means either a static entry in ther remote WINS server or DNS or an entry
>in each and every remote client's lmhosts file.


    That's how it works now.  That's not how it should work.  The "heh I'm
here" broadcast should be routed just like the packet that sent this email

    At least that's how it should work.

>> Furthermore, using WINS is saying that your server will never go down.  A
>> number of shops can't use WINS because for most of its history it was
>> available on NT, and believe you me, NT goes down.  Even Samba WINS
>> yet have fault tolerance.
>> There are environments where netbios broadcasts, though somewhat noisy,
>> simply *work*.  Diff'rent Strokes, Diff'rent Folks.  This isn't like,
>> putting up a root user TFTP server :-)
>that's why "mixed" and "hybrid" exists, which is a combination of
>broadcast and point-to-point NetBIOS resolution.

Yup.  So don't give us broadcasters so much flack :-)

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