From: Anthony Bonilla (anthonybonilla.ccie@gmail.com)
Date: Fri Feb 23 2007 - 02:20:58 ART
Okay, I think I got it - thanks a lot for your help.
On 2/22/07, Schulz, Dave <DSchulz@dpsciences.com> wrote:
>
> No, the helper addresses will allow you to direct broadcasts for say,
> DHCP. Pixie, etc for startup. The directed broadcast would relate to
> allowing directed broadcast out od the interface. Afaik, as it was
> explained to me.. Hope this helps.
>
> Dave Schulz
> *** Sent from my Blackberry ***
>
> -----Original Message-----
> From: Anthony Bonilla <anthonybonilla.ccie@gmail.com>
> To: Schulz, Dave
> CC: ccielab@groupstudy.com <ccielab@groupstudy.com>
> Sent: Wed Feb 21 22:40:32 2007
> Subject: Re: Helper address and directed broadcast Question
>
> 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<nobody@groupstudy.com>>
> [mailto:nobody@groupstudy.com <nobody@groupstudy.com>] On Behalf Of
> Anthony Bonilla
> Sent: Wednesday, February 21, 2007 9:12 PM
> To: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com<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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