Alex,
Ip dhcp server [address | name] will solve your problems (IOS 11.0 and
later). As far as the problems you're having with the NETBEUI traffic and ip
helper, you need to make sure you have protocol forwarding enabled, and
transparent or source-route bridging properly configured aka UDP flooding.
This solution is much more lengthy and cumbersome than the ip dhcp server
command for dhcp broadcast forwarding.
As I found on the cisco site, with ip directed-broadcast the only
protocols that are forwarded are those that are specified with the ip
forward-protocol command. By default (IOS 12.0 and later), ip
directed-broadcast is disabled, and all directed ip broadcasts are dropped.
This command translates from directed broadcasts to physical broadcasts. I
think what is meant by a directed broadcast is a subnet (or possibly
multicast?) and a physical broadcast is meant as 255.255.255.255, and would
be forwarded out all interfaces (?).
Hope this helps,
Tim Booth
----- Original Message -----
From: "khramov"
To:
Sent: Tuesday, September 25, 2001 2:57 PM
Subject: DHCP [7:21051]
> Hello
> How do I enable broadcast for DHCP server? I know that ip
> helper enables UDP broadcast, but broadcast of netbios
> services causes some problems for win nt server. So I guess
> to be more specific what can I do to forward udp broadcast on
> ports 67 and 68 only?
>
> And another question that I have what exactly ip
> directed-broadcast command does? I've searched Cisco's web
> site but I never came across a clear defenition?
>
> Thanks,
> Alex
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=21077&t=21051
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