From: Plank, Jason (JPlank@concordefs.com)
Date: Tue Jul 04 2006 - 08:07:13 ART
It is. And if you need to create an ACL you can match on UDP mobile-ip.
R1(config)#ip access-list extended MOBILE
R1(config-ext-nacl)#permit udp any any eq mobile-ip
-------------------
J. Marshall Plank
Network Engineer
101 Bellevue Parkway
Wilmington, DE 19809
E-mail: JPlank@concordefs.com
Phone: 302-793-5913
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Chris Lewis
Sent: Monday, July 03, 2006 8:24 PM
To: Montgomery, Jerry
Cc: ccielab@groupstudy.com
Subject: Re: UDP Flooding Broadcast Question
To make it easier, I believe mobile ip is a keyword in the forward protocol
command, just so you don't have to remember the port number for all these
things.
Chris
On 7/3/06, Montgomery, Jerry <jerry.montgomery@eds.com> wrote:
>
> Good afternoon, all,
>
> Here is the situation that I am trying to get straigh in my mind.
>
> Configure an interface on a router to forward incoming Mobile IP
> registration broadcasts to 140.100.2.254?
>
>
> 1. What are Mobile IP registrations ports? I am assuming UDP but what
> ports.
> 2. If I had the UDP port information, I planned to configure the "ip
> forward-protocol udp" command.
>
> Two options available:
> 1. Use "ip helper-address 140.100.2.254" command to forward the UDP
> broadcast to the 140.100.2.254 address.
> OR
> 2. Use "ip broadcast-address" command to forward the UDP broadcast to
> the 140.100.2.254 address.
>
> Why would I use the "ip helper-address command" over the "ip
> broadcast-address: or vice versa? Seems to me that all broadcasts would
> be send to 140.100.2.254 if the "ip broadcast-address" command was
> utilized and not just restricted to the Mobile IP registration
> broadcasts.
>
> Man, I am so confused!!!!!
>
> I am not seeing what the differentiator.
>
> Thanks,
>
> Jerry
>
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