From: Anthony Bonilla (anthonybonilla.ccie@gmail.com)
Date: Thu Feb 22 2007 - 00:40:32 ART
Dave,
Thanks for your response - I was beginning to think that my messages were
not making it to the GS but now I feel a lot better after you replied.
In any event, just to make sure that I got it: if you look at my depiction
of the setup, if we were asked to enable HSRP on the LAN interface of Router
R1 and use LAN broadcast address between Routers R3 and R4. In that case,
are you saying that I should enable helper address on the LAN interfaces of
both R1 and R4 and don't need to enable directed broadcast on either of the
interfaces (I thought that I had to have directed-broadcast enabled on R4's
LAN interface and would only enable helper address on R1's LAN interface so
that the traffic is directed towards the LAN segment between R and R4)? Pls
elaborate a bit, if at all possible. Thanks again for taking the time to
respond.
Tony
On 2/21/07, Schulz, Dave <DSchulz@dpsciences.com> wrote:
>
> Anthony -
>
> You will want to enable the ip helper on both routers that are acting as
> the hsrp group. The ip helper will provide the directed broadcast.
> HTH.
>
>
> Dave Schulz,
> Email: dschulz@dpsciences.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Anthony Bonilla
> Sent: Wednesday, February 21, 2007 9:12 PM
> To: ccielab@groupstudy.com
> Subject: Re: Helper address and directed broadcast Question
>
> Any takers? Can someone pls answer the following question because I
> have
> tried searching archives but hasn't been able to find a definitive
> answer as
> yet? Would appreciate someone's help with this.
>
> Thx.
>
>
> On 2/19/07, Anthony Bonilla <anthonybonilla.ccie@gmail.com> wrote:
> >
> > Hello GS,
> >
> > First of all, I would like to apologize for asking this basic (for
> some on
> > this group) question but I have this doubt in my mind for some time
> now and
> > wanted to see if someone from this group can help me understand this
> > concept. If we enable HSRP on a router for users connected to one of
> it's
> > LAN interfaces (LAN interface of router R1 in the below presentation)
> and
> > then use broadcast address of another router's LAN segment (say, LAN
> > interface between R3 and R4) as the address for IP HELPER ADDRESS
> command,
> > where would I need to worry about enabling directed broadcast?
> >
> > LAN --- R1 --- Serial --- R2 --- Serial --- R3 ---- LAN ---- R4
> >
> > Also, if someone would be kind enough to let me know if I need to
> enable
> > broadcast support at all if the helper address is, let's say, R4's
> > LAN interface address?
> >
> > I look forward to your response to this question.
> >
> > TIA,
> >
> > Tony.
>
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