Re: Helper address usage

Mark, but you are being overly restrictive.
Unless the question does not explicitly states "do not forward any other
protocols" I wouldn't go this far.

On Fri, Apr 3, 2009 at 3:41 PM, Mark Cairns <m.a.cairns_at_gmail.com> wrote:

> Chris,
>
> I run the following with this setup:
>
> no ip forward-protocol nd
> no ip forward-protocol udp bootps
> no ip forward-protocol udp tftp
> no ip forward-protocol udp nameserver
> no ip forward-protocol udp domain
> no ip forward-protocol udp time
> no ip forward-protocol udp netbios-ns
> no ip forward-protocol udp netbios-dgm
> no ip forward-protocol udp tacacs
>
> Mark
> #17755, Security
>
> On Fri, Apr 3, 2009 at 8:56 AM, Fellenbaum, John D <
> john.d.fellenbaum_at_lmco.com> wrote:
>
> > Chris,
> >
> > You only need it on the local LAN interface where your DHCP client
> > resides.
> >
> > HTH
> > John
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Christopher Copley
> > Sent: Thursday, April 02, 2009 9:40 PM
> > To: Cisco certification
> > Subject: Helper address usage
> >
> > Group,
> >
> > I have a question on the proper usage of the helper address, and I can
> > not
> > lab this up to test. I have a DHCP server that is down stream from the
> > request by a few broadcast domains. Below is my network
> >
> > DHCP Client
> > |-------F0/0-R1-F0/1-----------|-----------F0/0-R4-F0/1--------------|--
> > ----------------F0/0-R3-F0/1--------------------|
> > DHCP Server 100.1.3.99
> >
> > So my thinking is put the helper address on F0/0 of R1 with address
> > 100.1.3.99, Do I also need to enable it on R4 and R3? and if so, on both
> > interfaces?
> >
> > Any ideas?
> >
> > Thanks
> > Chris
> >
> >
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