From: Ronnie Angello (ronnie.angello@gmail.com)
Date: Thu May 31 2007 - 22:41:11 ART
The ip helper-address command by default only forwards a handful of udp
protocols, bootp/dhcp being one of them. You can control this with the ip
forward-protocol udp command. Use the no form of the command to stop the
forwarding of certain protocols.
On 5/31/07, sebastan bach <sebastan.bach@gmail.com> wrote:
>
> hi all
>
> here;s my scenario
>
> SW1 has a host on vlan 10 and SVI vlan 10 with ip add 10.1.1.1/24.
>
> the host is set to choose ip address automatically from dhcp server.
>
> i have ios router as dhcp server on vlan 20
>
> SVI vlan 20 has ip add 20.1.1.1 and dhcp server as 20.1.1.2
>
> on the SVI of vlan 10 i have set the helper-address to 20.1.1.2 of the
> dhcp
> server.
>
> my hosts are getting the ip address from the server .
>
> my doubt is since in the switch we can only specify the helpder-address
> command .
>
> it means all the broadcast on the vlan 10 will be converted and send as a
> unicast packet to the dhcp server also .
>
> how can i control it say only the dhcp broadcast packets should be
> converted
> to unicast and send to the dhcp server.
> no other other broadcast should be unicast and send to the dhcp server.
> is this possible
>
> has anyone tried this before.
>
> waiting for some reply.
>
> regards
>
> sebastan
>
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-- Ronald Angello CCIE #17846
This archive was generated by hypermail 2.1.4 : Fri Jun 01 2007 - 06:55:23 ART