>From my experience, this is the case in an attempt to reduce/eliminate
smurf amplification on the Internet.
My company uses an application which utilizes directed broadcasts in
an attempt to save on bandwidth, and any 12.0 deployment/upgrade I do
required "ip directed-broadcast" on each Ethernet/Tokenring interface.
Oddly enough, both "no ip directed-broadcast" and "ip directed-broadcast"
will show up in the running-config. I assume this was due to the default
behavior changing and will probably disappear again.
: -----Original Message-----
: From: John Neiberger [mailto:[EMAIL PROTECTED]]
: Sent: Thursday, July 06, 2000 9:07 AM
: To: Atif Awan; [EMAIL PROTECTED]
: Subject: Re: interesting
:
:
: My guess is that it's because "no ip directed-broadcast" is
: the default on
: each interface in 12.0. that's just a guess, I haven't had
: any coffee yet
: so no actual thought is taking place. :-)
:
: John Neiberger
:
: >
: > I had three sites in a hub and spoke configuration. Lets
: say router A was
: > the hub router and there were two spokes router B and
: router C. All were
: > 2500 series routers ( 2501 ) running IOS 11.2 ip plus i
: think . There was
: no
: > complex configuration; simple static routes and everything
: was working
: fine.
: > The NT stations at each site were able to log on to the
: server placed at
: the
: > hub and everything was showeing up on the network
: neighbourhood. This was
: so
: > because i had defined the required helper addresses.
: >
: > Then the need arose to add another site and the hub router
: A was replaced
: by
: > a cisco 2620. the same configuration was copied with ofcourse a few
: > additional static routes here and there and one more ip
: helper-address
: > statement for the new site. The new router was running IOS
: 12.1(1). The
: next
: > thing u know that still there is connectivity but when a
: new machine
: boots
: > on a remote site it is not able to find a domain
: controller. I had the
: > helper addresses defined properly but still nothing. Even
: the network
: > neighbourhood did not show all the machines; showed only the local
: machines.
: > Can anyone take a shot at this and guess what was the problem ?
: >
: >
: > Regards
: > Atif
: >
: > P.S : I managed to figure it out after running a debug
: trace on UDP but
: > still i think it was an interesting prob and thought maybe
: someone could
: > give me a better explanation to it.
: >
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