Actually, the default on "ip directed-broadcast" is subject to IOS release.
Since IOS 12.0, "no ip directed-broadcast" is the default and will therefore
not show up in the configuration.
Tom McNamara
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Priscilla Oppenheimer
Sent: Friday, June 15, 2001 10:26 PM
To: [EMAIL PROTECTED]
Subject: Re: wake on lan [7:8792]
The "no ip directed-broadcast" command is for IP, as you can tell. If you
don't see that command in the running config, then ip directed broadcasts
are presumably being forwarded. A directed broadcast is one that comes from
a device on one segment and is destined to all devices on another network,
for example 10.0.0.1 sending a frame to 172.16.255.255.
But it sounds like ip directed broadcasts won't do you any good because
Wake on LAN isn't an IP packet.
To make the router forward a broadcast that has no network layer you would
have to turn on bridging.
Priscilla
At 06:40 PM 6/15/01, khramov wrote:
>As far as I know WOL layer 2 broadcast, it does not have an IP field.
>That is the main problem.
>What is the command to look up if direct-broadcast is already enabled on
the
>router?
>Thanks,
>
>Priscilla Oppenheimer wrote:
>
> > One other thought: The article that Patrick referenced implies that you
> > could enable directed broadcasts. The default on modern routers is no
> > directed broadcasts but you could disable that. It's not recommended for
> > security reasons, but if you want to do it the command is "no ip
> > directed-broadcast."
> >
> > http://esupport.ca.com/public/sdo_shipit/infodocs/7065.asp
> >
> > But you have to find out what the server or whatever is sending to wake
up
> > the stations. You are troubleshooting in the blind until you find out
what
> > it is sending.
> >
> > Is it an IP packet?
> > Is it a UDP packet?
> > Is it just a MAC packet?
> > Is it a broadcast? At the MAC and IP layers?
> >
> > Priscilla
> >
> > At 05:58 PM 6/15/01, Priscilla Oppenheimer wrote:
> > >The "ip helper" command might help.
> > >
> > >Also use the "ip forward-protocol" command to forward the Wake on LAN
> > >broadcast and the "no ip forward-protocol" command to not forward other
> > >broadcasts.
> > >
> > >You would have to check the documentation to see if this would work for
> > >sure. Let us know how it goes! Thanks.
> > >
> > >Priscilla
> > >
> > >
> > >
> > >At 03:31 PM 6/15/01, khramov wrote:
> > > >I think that wake on lan sends out a broadcast with FFFFF... in the
> > > >destination field.
> > > >May be because it a layer 2 broadcast it is not passing the packets.
> > > >Can I configure a router to pass layer 2 broadcasts? And if I can is
> > > >there a way to
> > > >control the broadcast so that only wake on lan packets would pass?
> > > >Thanks
> > >
> > >
> > >________________________
> > >
> > >Priscilla Oppenheimer
> > >http://www.priscilla.com
> > ________________________
> >
> > Priscilla Oppenheimer
> > http://www.priscilla.com
________________________
Priscilla Oppenheimer
http://www.priscilla.com
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=8832&t=8792
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