From: ccie2be (ccie2be@nyc.rr.com)
Date: Wed Feb 26 2003 - 19:33:22 GMT-3
Hi,
Here's the original post regarding care-of-addresses used with Mobile IP.
With Mobile IP there are 2 types of care-of addresses:
1) Care-of-address acquired from a Foreign Agent
2) Colocated care-of-address
The Cisco docs does a good job of explaining what these are but doesn't say
anything about what determines which type of address is used or why 1 type
should be used versus the other.
Do I, as the network engineer, determine which type of address is used?
Does this depend on what mobile node software is installed on the client or
is this configured on the router, and if so, how?
Please help me understand this. Thanks, Jim
----- Original Message -----
From: "Scott Morris" <swm@emanon.com>
To: "'ccie2be'" <ccie2be@nyc.rr.com>
Sent: Wednesday, February 26, 2003 5:30 PM
Subject: RE: Amazing but true
> What was/were the original questions?
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ccie2be
> Sent: Wednesday, February 26, 2003 2:50 PM
> To: Group Study
> Subject: Amazing but true
>
>
> Hi everyone,
>
> Over the past few weeks, several times I've posted a question regarding
> the two types of care-of-addresses used with Mobile IP. My question
> concerned what detemines which type of address is used and whether the
> type used is something that's configured on the router or determined by
> some other means - perhaps the software installed on the mobile client.
>
> What surprises me though is that there hasn't been one single response!
> I don't understand how that could be. I've searched thru both the Group
> Study archieves and Cisco's documentation and found nothing addressing
> this question. I also know that mobile IP is fair game for the lab, so
> I'm amazed that this question continues to go unanswered.
>
> And, though I can't understand why that is I've come up with 2 theories:
>
> a) nobody knows
> b) nobody cares
>
> I can't imagine that nobody on groupstudy knows this - this is probably
> the most knowledgable group of networking professional in the world - so
> let's nix that idea.
>
> Could it be that nobody cares? That's also hard to imagine. Everyday,
> questions seemingly far more esoteric are posted and responded to.
> Besides, there must be at least a few people who might need to implement
> Mobile IP in the near future and they would certainly need to know about
> this. And, even if nobody at the moment needed to know about this for
> work, most people on group study seemed to be very intellectually
> curious So, let's nix this theory as well.
>
> Well, I hope this sparks some discussion, and maybe, in the process,
> generates the answer to the original question.
>
> What do you think?
>
> Jim
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