Re: Helper address usage

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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Received on Fri Apr 03 2009 - 09:41:47 ART